http://www.righto.com/2014/05/a-look-inside-ipad-chargers-pr...
http://www.righto.com/2015/11/macbook-charger-teardown-surpr...
http://www.righto.com/2016/03/counterfeit-macbook-charger-te...
The problem is counterfeits are all labeled as one homogeneous group, when they most definitely are not. Some are very, very good, some are not.
I've become genuinely disturbed at how substandard generic peripherals have become. What's especially disturbing to me is that the problem often seems to be drifting from spec standards, adhering to specs just enough to be functional for most products for just long enough.
I have a audio system that I went through like 4 generic cables on. I was just about to get a replacement system when I saw Anker enthusiastically recommended somewhere, and thought I'd give it a last-ditch chance. It's worked beautifully, no problems.
I've seen similar issues with other types of cables. The scope of the problem is astonishing to me--it's like the manufacturing standards at 85% of producers just suddenly went out the window over the last 5 years or so. I suspect there's a good newsstory somewhere there.
I'd rather pay a bit extra and have peace of mind.
The same thing goes with chargers -- I can get high quality, OEM level stuff for pennies, directly from China, or, for a small surcharge, from the US.
I understand Anker is trying to be "better" than OEM, but realistically, they're not 10x better -- maybe 10 or 20% tops, yet they charge significantly more. I personally do not see the appeal, other than maybe convenience.