Ironhead-
I have had a pair of G3's for about 8 months and have had great luck with them.

I have found them to be more breathable then my Patagonia SST's and standard Simms Guide waders (which were previously, IMHO, the most breathable waders on the market). They have also held up just fine and the little gadgets and gizmos (built in gravel guards, hand warmer pocket, built in retractor etc.) are great.