Repeated refund problems to the point that there is no actual guarantee with any purchase you make through the site. There’s nobody to talk with in regard to your lost, faulty, broken or simply wrong item. You are then asked to return the goods and from then you on it’s simply a wasted effort completely. They have a review service if you complain but even given you do all they ask, their service is so bad they simply lose your item or refuse to process it. So their policy is to support the sellers and screw the buyers. That won’t last. The more people they burn the less customers they’ll have. Sure, you might find it cheaper on AliExpress but in the long run, over time it’ll cost you more. Avoid like the plague.