Amazing, innovative game that must be experienced by all, but will probably be understood by a few.
Its not a game for everyone thats for sure. It can be a really head scratcher at times, especially in the later worlds, but the sense of accomplishment is really amazing when you figure things out by your own. One of the rare games that makes you feel smart for beating it.
The only cons I can say about the game are the lack of replayability (after all, after you figure out the puzzles you wont feel the urge to play it again) and the short campaign (roughly around 2 hours the first playthrough, depending on your "intelligence").
One last word for the artstyle. Tully AMAZING! Its literally like a painting coming to life. Jonathan Blow (Braids Creator) is congratulated. He has done a classic game out of a few hundred dollars.