bass traps

does anyone have experience with GIK vs primacoustics. They both look like well done products. I'm thinking about bass traps up front with panels behind and to the first reflection points about six feet out from the front wall. Two more panels at the rear, about 20 feet back, and I'll be set (well, I hope so). But.....which company? I've spoken with Jim Smith of "Get Better Sound". He asked that I send pictures of my listening environment to be able to give some accurate advice. Great guy to speak with. Anxiously awaiting his insights. Anyone else?