Well, if you're asking me (I think you are, hah), then I wouldn't really recommend it. It's got a really neat art style and unique story, but it all fell apart for me in the game play. It's a shame, because I think it's a really cool game.
Probably a 2 or 3 out of 5 if I had to give an actual rating.
But if you really want to try it, just rent it from somewhere for a little. If you don't like it then at least you didn't buy it.