I always love playing a good ol' gravity-defying game, and this game really knew how to take advantage of its rotating mechanic. Quite a few inventive and fun levels, especially those found later on in the game. I got stumped a number of times, but that's perfectly fine by me- I love being challenged, after all. And every mistake or death I've experienced throughout the game always felt like it was legitimately my fault... meaning that I haven't spotted anything I'd necessarily call cheap level design nor have I found any unexpectedly sharp increases in difficulty. Balanced, as all things should be. The only criticism I have is that I wish Rotate was longer overall, but I think the really fun level editor more than makes up for it.
I'd honestly love a sequel. :P