Absolutely amazing, and really felt like a dream.
The effects are a bit too strong for my taste, especially the depth of field, however, I do understand, that it makes the game more dream-like.
I also loved the level design, really feels like you're disoriented, but still find the environment somehow familiar, like a good liminal space should be.
One note: I've played it in browser, and got an error messages right after finishing the game.