Default [Q] EasyAcc® 10000mAh - Reviews?

Hi,

I've been browsing for a portable charger that's worth the price, and I think I might have found the one.
Packed with 10000 mAH, the EasyAcc charger coming in at $26.99 is an incredible deal.

Does anyone have any experience with this charger? How is it compared to the reputable Anker portable chargers? What's the efficiency level?

http://www.amazon.com/EasyAcc%C2%AE-...rtable+charger

Thanks for your help.