The problem is I never used to have these issues when buying from them. The part was correct - every time. Now when I order something I have to allow an extra week or two before I can actually use it, just in case I have to do a return. Like in the auto parts example - If I want to replace something on the car that requires disassembly, I schedule a Saturday for it. But then the part arrives and it's of poor quality because it's counterfeit, so I have to reschedule my time, and perhaps a friend's time who was going to come over and help.

If this happens once, it's an annoyance but dealt with. If it happens repeatedly (it took 3 tries to get the legit water filters because of co-mingled stock at Amazon), it's waaaay beyond annoying.