Its nice. Second Level has some really nasty surprises tho, considering how long it is. Putting a Firefloater into the Secret was pretty rude, but I should've seen something like that coming. Died there, but found the Elevator(?) beforehand, so I'm assuming I was nearly through that Level anywhere and am not going to try again.
The Place when you fall down into a giant Room full of Tons of Enemies (twice) isn't very good, you just immediately get targeted by all of them and loose most of your Health until you're safe behind some Box or something to start taking them out. Consider reworking those Areas, or just reducing the Enemies in the Room a bit/ increasing their Time to target something.
Other then that, the second Level adds a lot of Lore to the Game, which is nice. and the overall Design and Layout are pretty good aswell I think. I never really was lost, and it felt like it had a good Flow of Encounters going.