I REALLY liked this game!
The controls are water-tight, the gameplay fun, the level design was fun to traverse, I really enjoyed my time with it.
However, I think the game's too hard; firstly, it's way harder than it should to exit that first room you spawn in. Having a tutorial room where you have no time limit would have gave the player time to figure out the controls; putting a super tight time constraint on a player trying to figure out how to play isn't really that good.
After I did managed to learn how to play, I really really enjoyed my time with the game. Fast, tight and precise; really damn nice. However, I didn't managed to clear the first level, but I did managed to enjoy a lot the game.