The product sound panels are high quality - but are very expensive. The entry level 4X8 panels are in the mid $250. The better panels are over $400 each. While applications vary - this is a very expensive solution for a 12X20 studio.
I purchased the lower quality lower cost panels and while the sound absorption is improved- it certainly wasn’t worth the $3k I spent. The better panels would have cost me over $6k. Not sure it would have made a difference.