I have only ever heard good things about Anker but their premium price has kept me from purchasing them. I bought Aukey several times because they were considerably cheaper than Anker.

I was and still am impressed with their quality and with their support so I have continued to buy their products.

I really like their now outdated PA-U32 USB power supply, it was a great value for the money and I probably have a half dozen or more.

I think all of my USB powerbanks are Aukey and I have been happy with each.