A good game with a pleasant atmosphere. Unfortunately, I didn't have the patience to fully master the mechanics, though I might return to it someday. :)
The movement system is actually deep enough to be engaging, and the levels make good use of it. However, it felt a bit too demanding regarding timing (the character latches on very quickly)—though perhaps I just didn't get used to it in time.
By the way, early on, I felt an urge to climb onto the ceiling or get under the floor. I managed to do it, but it didn't yield anything. The game's mechanics naturally encourage that kind of behavior. Make of that what you will. :)
I would add some secrets.