I had previously bought one of these NEEWER battery grips for my Canon EOS450D and found it to be a cost effective, fully functional, trouble free item. That particular grip has been in use for 4 years (and continues to be so). On the basis that it has performed so well, I opted to buy one for my EOS 70D. If it's anything like the original, I'm hoping to have trouble free shooting for a long while to come! It may not have the Canon logo on it, but for the price I won't complain.