I've currently bought this battery grip for 66.89 (62.90 + 3.99 shipping and handling) and am more than satisfied with the result. I use this battery grip on my Canon 550D. This product arrived on time at my home and on the packaging can not fault. Having the two supplied batteries are charged, I then inserted into the magazine, and after I have attached the battery grip on my camera I could immediately start without complications to photograph. Anyone who is not lining up completely stupid, the battery grip will explain by itself, because the handling is easy. In my opinion, the two batteries supplied (almost) come ran to the quality of the original battery by Canon. And if a tiny difference should exist, this is not appreciably due to the low price. The qualitative processing of the battery grip is also no way to complain because he harmonierend adapts to my camera.
In my opinion, this battery grip promotes greatly the handling of the camera as the photographer has found more support and therefore less wobble. Especially with a plugged-in flash and a telephoto lens (when the camera is bearing heavy equipment) I want this handle never miss again, because the use without battery grip seems unwieldy.
Therefore: 5 stars for the product and 5 stars for the price / performance ratio. I can only highly recommend this product.