I really like the idea, but the movement is almost rage inducingly floaty, jumping doesn't always seem to trigger, and getting "stuck" on the vertical faces without sliding down is annoying. Also... due to the speed your character goes, it's very hard to accurately platform jump or, even know what's coming up in the level to know what the next move will be.
All that said, when my actions are perfect, the game does feel like it could be a lot of fun!