I just did my sound room with the Artika from Costco. It has been done for about 1 month and am very pleased with the sound of the room and the aesthetics. This is also my living room so had quite a bit of cutouts to do for tv, brackets etc. These panels were easy to form to any situation I needed just using a tape measure, razor knife and jig saw. My first round was using the 3m command strips and doing a systematic trial and error and developed a pattern that was very effective music wise and also withstood my OCD for symmetry. When I was satisfied, I used a little all-purpose spray glue and drywall screws. Cost was about $600 as I wasted some material. I was replacing foam egg carton style mounted on cardboard which did a good job of taking out my echo but made the room deader than I liked. The Artika was like popping your ears after a steep road climb with your radio on. I forgot how dead the room was after so many years. Hoped this helped and good luck.