I bought this game and had to go through hell to get a refund.
In terms of gameplay it looked good for the whole 30 minutes I played it, but then the graphic bugs just became too much for me to handle, screen tearing and slow textures killing the mood of playing what looked like a good game.
The enemies jumping around avoiding all the attacks and the weapons seemed pretty good and added a nice challenge.
The latest patches have apparantly fixed a lot of bugs, but I don't see why they released a game that was so poorly finished. I'm going to give this a 3, I may decide to play it again in the future, but for now, it's staying low.