I recently got rid of my old burlap covered fiberglass acoustic treatments. I ordered a dozen Ready Acoustic bags. Just wanted to comment on the product.
Very nice and easy to install. Worth the $29 bucks. Has fabric handles sown into it for hanging verticle or horizontal and comes with some easy hooks that you push into the drywall. they don't allow for an air gap. Their brakets for $29 a peice that do create the gap seem over priced. Also comes with some plastic corner inserts that have adhesive to creat the sharp looking corners
I will be using some Zip ties to the hooks and placing a 4" PVC tube behind them like Ethan reccomends to create the gap. Super easy to install. Made of a micro fiber. Not sure about how this handles the highs.
12 panels cost me $320 for the bags, and $240 for Roxul 60.
They were out of the Red 6" bags I need for my corners but these will do for now.