I've used Acoustimac panels for two projects at our church. They deliver a quality product for a great price! I have priced out similar options and Acoustimac has some of the best pricing around. I tried their panels on a small project for our video recording/production room and the panels worked great, so we also installed 74 panels in our church sanctuary. We were always fighting with too many reflections in our sanctuary, and it got worse after we removed pews and replaced them with chairs. After installing the panels the room is so much cleaner. The reverberation of the room is so much shorter, and more pleasing to the ears. People can finally hear the sound of our PA speakers directly, without the room washing everything out. IU also have to say that even with such of big order the product was produced and shipped quickly.