One of my favorite VR games right now. I love the aesthetic and the gameplay is good too. My only complain would be that their is too less variety in the levels. Need more enemies (maybe some flying, rocket launching robots or stationary turrets!) and a bit more deco and stuff in the level itself.
btw (@themikebachmann), I'm playing with a Oculus Rift and TWO sensors in roomscale, no problem at all. The controller layout is good, I missed some kind of tutorial or guide at the beginning, took some time to figure out the reloading and stuff.
Also, I would like to hand you some money for the game... How can I donate?