Sound and visual design is stellar, unfortunately this just isn't my kind of game, I don't enjoy falling and losing almost all my progress because I made a few mistakes. The jump physics (aside from the getting stuck on slopes sometimes) are pretty good though and I definitely feel like I have good control over the monkey and not that the game is just being mean to me.
My biggest gripe is the camera though it points into the opposite direction of where I want to jump and it would have been big if I could change it.