I purchased the Reflexion Filter to reduce the unwanted reverb effect we were experiencing in our study. The study is not sound treated, so anything I could get from the Reflexion would have been great. I'll tell you what, it made our jaws hit the floor. The vocals coming through our AKG C 414 B-XL II were absolutely incredible. For the most part, perfectly dry. You need to follow the instructions on mic placement within the Reflexion carefully, but it is not all hard to set up. Did require a weighted mic stand...but hey, all well worth the cost! I'd buy another in a heart beat!
Does exactly what you'd assume it would do. Great for vocals. I upgraded my stand, because I read it was rather heavy, and still needed to support the base with two dumbbells. It's going to make your stand top-heavy to one side, so just be prepared for that. Definitely worth purchasing barring that minor inconvenience, though.