the puzzles are backtracking basically

LGBT Propaganda game. Foul groomer devs. Shame

Amazing test chambers. All of them stumped me to varying degrees. They aren't hard, they just make you think outside of the box, and then outside the room the box is in. I'll think I solved it, then realize I was not close at all.

Dialogue is meh, doesn't come close to the base game, I never really felt like listening, but it is a free mod so I can't really complain. Cave is as good as Cave can sound without Simmons voicing him. Just image he is really young, which he is at that time.

I also really like the music.

Story is decent, and the environments are well decorated. I always imagined enrichment shafts 01-08 were use to test other thing that weren't the gels. Like what happens when you look at the operational end of the device, or touch the operational end of the device, or even submerge it in liquid, or even [bzzzpt]. (I was going to say something serious, but something came over me.)

I did have some performance problems. I always got stutters when playing Portal 2 natively on Linux, so I use proton 9. Didn't get any fps drops in the base game, but I did in Mel.

Overall, being a free mod for an already amazing game. 9/10, because nothing is perfect.