I love everything about this game.
I gave up at the level where you have to quickly switch between the lasers. Seems to be the next to last one, which I only know because I resorted to watching the walkthrough at that point. Not because I didn't understand how to get past it, but because my fingers would not allow such a feat.
It felt a little bit like my hand was being twisted all pretzel-y and my fingers wouldn't stop tripping over each other. Yeah. :'(
One thing I noticed is that the game seems a bit short. I mean, had I completed it, I would have thought it was short.
Everything else is superb however.