What kind of things have you ordered? I order there often and had consistently solid products. I order mostly electronics and I order from companies that shipped over 1000 items with good reviews (which are fake but with over a 1000 it seems ok). Might have gotten Lucky but I order often And when something is wrong later on I have gotten a replacement no questions asked.

A good friend of me who used to be a manager of the repair department of a big computer manufacturer always told to switch a device on (laptop for instance) and have it run a something heavy (like a benchmark) for 24 hours to rule out factory issues. I never had any from Alibaba: I did have one from lightinabox who sent a laptop which caught fire during the test. They said I should not have done the benchmark and refused to refund so never bought anything there again.

To be honest I had more issues with Amazon (seller) products, but those also were quickly refunded or replaced.

Anecdotal ofcourse. Might be totally different when my next order arrives.