“The Aston Halo Reflection Filter does its job as described. It's super convenient when switching to different rooms and it's extremely effective in achieving the results you want. If I had found out about this when it first came out, I would've gotten it straightaway! If you're wanting to record in a room that isn't acoustically treated or just want a more "deadened" sound while maintaining a high quality recording, the Aston Halo Reflection filter is a necessity and a must have!”