I think it's awesome as hell
and I think the story is awesome as hell, too, the way each part of the story introduces the concept of the next levels
and the puzzles are just plain brilliant
I thought when I first heard of it, "oh great, everyone thinks yet another time rewind game is original"
but I was totally blown away by all the creative ways it was used, and some of the crazy stuff you have to do in world 3 with the right left, forward rewind thing is...goodness
it's just freakin badass,