I wonder why it's "frequently returned"? Maybe people buy it, diagnose/fix an issue, then send it back? Surely people aren't doing that...
I was wondering the same thing. This model isn't listed on the US Launch website, so probably a knockoff or another market model. Reviews say no US support, have to call China.
Probably a good idea to test it well and make sure it'll do everything you need within the Amazon return window.