Oh, you were unhappy with the majority of a lot of purchases, right? I mean, "most likely" suggests you must have what you consider to be a statistically significant data set.
Personally I've bought airsoft stuff from China inc. HK, about 25-ish times. Of those, 1 got cocked up probably due to me adding an item after the initial order, but it got sorted in the end, so about a week extra wait (ehobbyasia); 1 failed to arrive at all and they took longer than i would have preferred to refund me (uncompany); 1 sent me stuff of quality with which I was unhappy (an ebay seller - i forget), but TBF to them, I did blag them down in price for a combined deal and i wasn't actually that arsed about some of it anyway - the sling was an unbranded 1 point bungy type and was/is fine. Still, I used google translate to send a complaint and they offered me a full refund or a future discount - i went with the discount: haven't actually used it yet, but hey ho, they'll get something in which i want sooner or later.
The other 22-ish deals have been fine. I mean, when I buy something from China which is less than 1/2 the price of the branded item in the UK, I'm pretty sure it's a knock off, so I don't care when it proves to be. All I care about is whether the knock off does what I need.