I bought this kit to treat my control/recording room. I can not tell you on how big of an impact this made in my room and to the sound. It takes seconds on listening to a track and can tell whats wrong and what has to be fixed. Yes it seems to be expensive, but when you listen to what it does to your sound it is actually a deal. Read more
It is worth twice what I paid for it. Would never ever have a room again not treated..