I actually like it! At first I thought the concept was way too hard, as I couldn't hit any, but slowly as I began to play more and more I found that I got a lot better and started to hit at least 1 every single round, and then I finally had a climax where I hit 2 at once! Still, I think the guns might have done better if they fired faster-- I liked how they fired automatically, but many many times I felt cheated when I had them both aimed but the enemies were too close for the guns to fire in time. Overall a good concept.
(I found that I when the WASD reticle was on the left side and the Arrow Keys reticle was on the right side, I actually was able to play much better, so maybe a new version could have 2 seperate screens controlled side-by-side as to make it more cognizable. Or not!)