~ME1~
Pros:
Good remaster overall. Performs fine at max settings on my 1440p ultrawide. Minor stuttering in the vehicle at times but wasn't that bad.
Awesome voice acting with some recognizable actors. The female Shepard was perfect, tough and no-nonsense, which really fits the character.
Music was nice too for the theme of the game. Sound effects were pretty good.
Nice storytelling. I enjoyed the dialogue and the intensity of the story presentation as well as the ending.

Cons:
Terrible face sculpting, many characters have a permanent look of surprise. Game is showing its age but even some older games had better character design.
There are some idle animations to keep things lively but for the most part, everyone stands around with the same stiff/rigid demeanor.
Not a great shooter. There is no ammo management as all guns have magical infinite ammo and instead you manage their heat levels.
All bodies magically disappear when killed. Presumably because this was a console title.
Also related to this being a console game first...this has a horrific UI with little to no information being presented on screen at any one time.
Awful AI, the melee opponents often run in circles. Enemies with guns will run right up to your crew and stand in the middle of everyone while trying to shoot you point blank. Allies will run in front of you constantly. If you order them to go to a position, sometimes they do it, sometimes they don't, and they never stay there long.
Level design is very boring. Just your basic empty hallways, copy/pasted rooms with minimal detail/clutter.
Vehicle controls are abhorrent. Press W to move forward but if you look behind you then W goes backwards? Makes no sense.
Character can't sprint for more than about 2-3 seconds.
Audio sliders only affect the gameplay so the cutscenes were WAY louder than I wanted.
Looter shooter where you constantly pick up 100 different weapons to replace that of yours and the crew.

Overall not a bad game but definitely not a great one. On its own, I would still recommend it for the story alone.

~ME2~
Pros:
Massive improvements overall. Better face sculpting, ammunition in favor of heat mgmt, improved AI, significantly better level design, terrific sound effects and voice acting as well as storytelling. The story is vastly more entertaining the way you go around recruiting your crew. The intricacy of the characters and how each has their own unique side quests really makes the game shine.
You can import your save so your character looks the same and all decisions made in the previous game are part of the sequel.
No longer a looter shooter as you have specific weapons and instead focus on upgrading them instead of replacing them.
Depending on paragon/renegade levels, you can interrupt others during dialogue and change the outcome of a scene. This is actually really interesting and fun, I wish more games did this.
With more character involvement and backstory, you really see how unique each alien race is in terms of their speech patterns and culture etc.

Cons:
Still terrible at sprinting, awful UI, they replaced the vehicle with a hovercraft thing that you platform with which is arcadey and doesn't belong.
Bodies still disappear and while they did add ammo mgmt, all the small caliber weapons use the same ammo which is fully replenished when picking up ammo.
They did away with crouching and using grenades for some reason

Overall an amazing game and one of the better RPGs I've played. Worth it for the story alone but the gameplay is vastly improved too.

~ME3~
Pros:
They added grenades back in and this time they are traditional throwables which is nice.
You can sprint forever!
Still has a great story and quality voice acting. I was literally in tears at the end. I truly enjoyed this experience.

Cons:
The dialogue seems a bit silly and even cringy at times. It is slightly less 'serious' than the first 2 games when doing side quests. Also, WAY TOO MUCH TIME is spent doing 'shore leave' stuff which takes away from the intensity of how serious the situation is in this story.
Can no longer holster a weapon. When you are in a combat area, you are constantly running around with weapon drawn and stuck in a tightly narrowed FOV.
The journal is much worse, there is less info and it rarely tells you where to go or what step you are at within the quest. You could have the item you need to fetch and not even know it. You might know you need to return an item to the Citadel but you'll have zero indication of which floor to go to.
No more probing planets for materials or minigames for hacking/bypass - this may be a Pro to some but a Con for others. Instead you probe a planet to acquire an item for a fetch quest and don't even leave the ship. I can understand removing hacking/bypass minigames for doors you NEED to go through, but removing them from things that would just grant you credits is just making it needlessly easy.

Overall not as good as ME2 on the whole but but still an awesome game with a spectacular set of endings. I loved it at the end and was genuinely in tears.

As a trilogy, I highly recommend it. This is a great series and I'm happy I finally got into it!

~ME1~ Pros: Good remaster overall. Performs fine at max settings on my 1440p ultrawide. Minor stuttering in the vehicle at times but wasn't that bad. Awesome voice acting with some recognizable actors. The female Shepard was perfect, tough and no-nonsense, which really fits the character. Music was nice too for the theme of the game. Sound effects were pretty good. Nice storytelling. I enjoyed the dialogue and the intensity of the story presentation as well as the ending. Cons: Terrible face sculpting, many characters have a permanent look of surprise. Game is showing its age but even some older games had better character design. There are some idle animations to keep things lively but for the most part, everyone stands around with the same stiff/rigid demeanor. Not a great shooter. There is no ammo management as all guns have magical infinite ammo and instead you manage their heat levels. All bodies magically disappear when killed. Presumably because this was a console title. Also related to this being a console game first...this has a horrific UI with little to no information being presented on screen at any one time. Awful AI, the melee opponents often run in circles. Enemies with guns will run right up to your crew and stand in the middle of everyone while trying to shoot you point blank. Allies will run in front of you constantly. If you order them to go to a position, sometimes they do it, sometimes they don't, and they never stay there long. Level design is very boring. Just your basic empty hallways, copy/pasted rooms with minimal detail/clutter. Vehicle controls are abhorrent. Press W to move forward but if you look behind you then W goes backwards? Makes no sense. Character can't sprint for more than about 2-3 seconds. Audio sliders only affect the gameplay so the cutscenes were WAY louder than I wanted. Looter shooter where you constantly pick up 100 different weapons to replace that of yours and the crew. Overall not a bad game but definitely not a great one. On its own, I would still recommend it for the story alone. ~ME2~ Pros: Massive improvements overall. Better face sculpting, ammunition in favor of heat mgmt, improved AI, significantly better level design, terrific sound effects and voice acting as well as storytelling. The story is vastly more entertaining the way you go around recruiting your crew. The intricacy of the characters and how each has their own unique side quests really makes the game shine. You can import your save so your character looks the same and all decisions made in the previous game are part of the sequel. No longer a looter shooter as you have specific weapons and instead focus on upgrading them instead of replacing them. Depending on paragon/renegade levels, you can interrupt others during dialogue and change the outcome of a scene. This is actually really interesting and fun, I wish more games did this. With more character involvement and backstory, you really see how unique each alien race is in terms of their speech patterns and culture etc. Cons: Still terrible at sprinting, awful UI, they replaced the vehicle with a hovercraft thing that you platform with which is arcadey and doesn't belong. Bodies still disappear and while they did add ammo mgmt, all the small caliber weapons use the same ammo which is fully replenished when picking up ammo. They did away with crouching and using grenades for some reason Overall an amazing game and one of the better RPGs I've played. Worth it for the story alone but the gameplay is vastly improved too. ~ME3~ Pros: They added grenades back in and this time they are traditional throwables which is nice. You can sprint forever! Still has a great story and quality voice acting. I was literally in tears at the end. I truly enjoyed this experience. Cons: The dialogue seems a bit silly and even cringy at times. It is slightly less 'serious' than the first 2 games when doing side quests. Also, WAY TOO MUCH TIME is spent doing 'shore leave' stuff which takes away from the intensity of how serious the situation is in this story. Can no longer holster a weapon. When you are in a combat area, you are constantly running around with weapon drawn and stuck in a tightly narrowed FOV. The journal is much worse, there is less info and it rarely tells you where to go or what step you are at within the quest. You could have the item you need to fetch and not even know it. You might know you need to return an item to the Citadel but you'll have zero indication of which floor to go to. No more probing planets for materials or minigames for hacking/bypass - this may be a Pro to some but a Con for others. Instead you probe a planet to acquire an item for a fetch quest and don't even leave the ship. I can understand removing hacking/bypass minigames for doors you NEED to go through, but removing them from things that would just grant you credits is just making it needlessly easy. Overall not as good as ME2 on the whole but but still an awesome game with a spectacular set of endings. I loved it at the end and was genuinely in tears. As a trilogy, I highly recommend it. This is a great series and I'm happy I finally got into it!