It's hard to tell if this game is good or bad. I played it for much longer than the steam shows (epic games launcher exists) and can tell that it's really fun to play. But there's an if statement added to that - it's really fun to play if you won't get overwhelmed by both power and feature creep and excessive grinding that intertwines various mechanics and gets even more complicated every major update.

Community is helpful, guns, pistols and melee weapons are awesome, warframes are mostly unique and useful (except yareli which got to be merely a stain on warframe selection)
BUT
it's really easy to feel overwhelmed, it's easy to feel like you make no progress and grind for days just for some crucial components AND you have limited space for weapons, warframes, mods etc...
Warframe needs more approachable tutorials and some cuts to content sum not to seem overwhelming

Personally I like the duviri paradox mission chain the best. Warframe could just be that and it wouldn't actually suffer anything but to show actually how overwhelming it is to get into warframe I will list most of the somewhat relevant features

relics for prime warframes and weapons
mods which contain normal mods, rivens, prime mods, collection mods, iterations of normal mods
main story missions (to unlock late game and endgame)
cetus (bigger map with reputation system)
fortuna (another bigger map with reputation system)
necralysk (another bigger map with reputation system)
zariman (another reputation system)
smaller system factions (another reputation systems up to six to choose from)
scanning (you guessed it - with reputation system)
nora wave (daily quest system)
sortie (endgame daily)
archon hunt (later endgame daily)
steel path (obtained through unlocking all mission nodes)
bosses (drop warframe part blueprints)
kuva survival (mechanic to vary riven mods)
kuva liches (another standalone mechanic)
"corpus sisters" [can't remember the proper name] (another standalone mechanic similar to kuva liches)
duviri paradox as an extension of zariman (the roguelite mission mechanic, most enjoyable for me)
duviri weapon upgrades (another mechanic)
ohhh also forgot that there are mechanics to build weapons from various parts in cetus and fortuna, and zariman [can't remember if necralysk has this too]
warframe blueprint questlines

and these are essential ones
I guess not a single person can actually be a completionist in warframe unless they pay thousands of dollars

yet it's a great game IF you won't get scared away
which happened to me a couple times
and a couple times I just got bored of grind
and a couple times I got discouraged by the thought of another major update being implemented thus systems and mechanics getting more complicated and grindy

It's hard to tell if this game is good or bad. I played it for much longer than the steam shows (epic games launcher exists) and can tell that it's really fun to play. But there's an if statement added to that - it's really fun to play if you won't get overwhelmed by both power and feature creep and excessive grinding that intertwines various mechanics and gets even more complicated every major update. Community is helpful, guns, pistols and melee weapons are awesome, warframes are mostly unique and useful (except yareli which got to be merely a stain on warframe selection) BUT it's really easy to feel overwhelmed, it's easy to feel like you make no progress and grind for days just for some crucial components AND you have limited space for weapons, warframes, mods etc... Warframe needs more approachable tutorials and some cuts to content sum not to seem overwhelming Personally I like the duviri paradox mission chain the best. Warframe could just be that and it wouldn't actually suffer anything but to show actually how overwhelming it is to get into warframe I will list most of the somewhat relevant features relics for prime warframes and weapons mods which contain normal mods, rivens, prime mods, collection mods, iterations of normal mods main story missions (to unlock late game and endgame) cetus (bigger map with reputation system) fortuna (another bigger map with reputation system) necralysk (another bigger map with reputation system) zariman (another reputation system) smaller system factions (another reputation systems up to six to choose from) scanning (you guessed it - with reputation system) nora wave (daily quest system) sortie (endgame daily) archon hunt (later endgame daily) steel path (obtained through unlocking all mission nodes) bosses (drop warframe part blueprints) kuva survival (mechanic to vary riven mods) kuva liches (another standalone mechanic) "corpus sisters" [can't remember the proper name] (another standalone mechanic similar to kuva liches) duviri paradox as an extension of zariman (the roguelite mission mechanic, most enjoyable for me) duviri weapon upgrades (another mechanic) ohhh also forgot that there are mechanics to build weapons from various parts in cetus and fortuna, and zariman [can't remember if necralysk has this too] warframe blueprint questlines and these are essential ones I guess not a single person can actually be a completionist in warframe unless they pay thousands of dollars yet it's a great game IF you won't get scared away which happened to me a couple times and a couple times I just got bored of grind and a couple times I got discouraged by the thought of another major update being implemented thus systems and mechanics getting more complicated and grindy