I realize the Power Bucks reward is now off however I still would like to share my first hand experience. I haven't been on the website long but I have used a few of the products. My friend (@joshuad11) was constantly on the website and active on the forum however I didn't really know what it was.
One day he showed me some of Anker's wonderful products. I mean it was cool you guys sell batteries and stuff I didn't think much of it. However one day my phone was about 3% and I was gonna charge of my computer. Instead Josh came to the rescue with his slim power core ( can't remember which version) and oh my goodness that sped up charging so much. From then on i've been looking at anker products and trying out and testing Josh's. I'm really happy he showed me such a wonderful website .