I'm quite surprised the announcement of the Pixel grip beat the delivery of the Canon grip. I knew there'd be a knock off but they didn't waste any time. I just pre-ordered the Pixel brand. The pictures on EBay show what looks to be a well made product. Of course we all want to know how well the buttons function.
I bought a Zeikos grip for my 5D MKll for under $60 and it was perfectly fine. As good as the Pixel looks I would have preferred ordering the Zeikos brand because of personal experience.
I didn't mind paying top dollar for the great 5D MK lll, but I sure wasn't about to spend $350 for the Canon grip.
Mk lll grip for $90, no tax and free shipping, life is good ! Thanks to the OP for the tip !