I took delivery and immediately sent it back. They were selling it for 29.99 and raised the price to 79.99 just to make the deal more appealing. That's all you should need to know about how they do business. Luckily Google refunded my purchase without hesitation.
Now, the actual case is incredibly cheap feeling and looking. The stand is dinky and the best part is the back says "Sanmsung Galaxy S III". Yep, incorrectly spelled. There are plenty of these on ebay where you can clearly see the spelling mistake if you want to look for yourself. I found a YouTube review that elaborated on how much of a waste of money it was too. You get the point. Don't buy this product; do yourself that favor at least.
After ordering I did some reading about these types of cases in general. It seems that they waste a ton of the battery capacity in transfer via heat or otherwise. You're much better off getting a bigger battery which results in similar thickness anyway. I went with a 4200 mah qcell (about 20 bucks) and have been getting great results. The hyperion battery is good as well. Both have many endorsements all over this forum.
Personally, I wouldn't buy anything through this retailer ever again. I don't trust their pricing or their products.
EDIT: this is in regards to All 4 Cellular, not trait-tech