The reflect mechanic feels good, the soundtrack is awesome, and generally I had a good time. My only complaint would be about the massive slowdown when killing enemies. Given that it seemed to pause significantly longer when I killed two enemies at once, and it took a long time to load off of the main menu in the first place, I'm going to venture a guess and say the slowdown wasn't intentional but instead caused by excessive particle effects, and some further optimization could be in order. Regardless, I had a great time!