6pcf fiberglass panels, opinions?

There is a local company in NJ that manufacturers and sells these panels...
http://atsurfaces.com/specs.htm

I already bought a set off of eBay and they seem pretty good. It was cheap so I was willing to take a risk. I noticed a difference though I just started taking acoustic measurements, so I don't have a with/without comparison.

Now I need more panels...
Before I commit myself to this product (vs ATS Acoustics or Acoustimac), I just wanted to know what folks think of the material, and their claims on acoustic performance.

I have tried to read like crazy all over the internet, but I can't find info on this company, nor performance stats on 6PCF fiberglass.

Any opinions, experiences or thoughts?

Absorption coefficients appear similar to other 6 pcf product (OC705), shown here.

/Ken