EDGE has compelling graphics, clever level designs, and some pretty jivvin' music. It is, without a doubt, a thouroughly entertaining game.
Too bad, then, that the controls are so horrible. So horrible, in fact, as to completely ruin any sort of enjoyment you can get from this. Their foibles are twofold:
1) As alluded to in other reviews, the entire game is skewed 45 degrees either left or right, depending on what you select in the options menu. This means, assuming the first case, that up takes you NW, left takes you SW, down takes you SE, and right takes you NE. What this results in is even the simplest movements require twisting mental gymnastics, and the game is often moving too fast to allow for that.
2) In addition, pressing any of the four keys does not actually move you in that (confusing) direction. Not neccessarily. All movement is momentum based, and the duration of your key press determines the estaticness with which your cube flings itself in that direction. This usually results in you idiotically plopping off the side of a cliff while trying to move one space to the SW (*cough* left).
The controls turn this game into an unplayable mess. If you have the necessary technology, you can enjoy EDGE on its original platform, mobile, with its original control scheme, gyroscope. But do not buy it here. You will be enraged at the excellent game giggling and waving on the other side of horrifically imprecise input.
(Out of sheer disbelief I also tried a gamepad, which almost makes the problem bearable.)