I've used it and like it. Smaller system; one hub out to 4 boxes - 2 in the control room and 2 in remote locations about 100 feet away. System has been reliable, goes loud, and sounds good. Previously had been using the Hearbacks and they were terrible - sounded bad, noisy, underpowered, and unreliable. The Behringer has been solid for a few years now. The mixer boxes have the option to be individually powered with a wall wart - we haven't needed it, but I could imagine with 8 to 10 boxes running on the system it might be a good idea.