Is anybody using Ready Acoustics bass traps ?

I have a mid-bass boom issue in my new listening room, and I found this company on the internet selling very reasonably priced bass traps:

https://www.readyacoustics.com/index.php?go=products.proddetails&prod=RT424

I don't have time to DIY, and I don't have a lot of money to spend, and these traps look like they might do the trick.

So has anyone tried them ? (Or the underlying Corning 703 fiberglass material)

Thanks