Yea, that checks out. I don't think I've ever had good experience with Chinese companies. It is like 90% of the product is marketing and form, rather than function. I bought some robotics stuff from a Chinese company. It became a paperweight because the documentation was a google drive folder that was a collection of code and random PDF files from various sources, mixed with some Chinese stuff. The branding was a 10/…
You have 3+ times bad experience with Chinese stuff, but conclude that 90% of Chinese stuff are bad, so you only purchased Chinese stuff 3.33+ times? I don't believe it. Check all your stuff, especially the ones that you consider good. You might be surprised how many of them are Chinese.
BTW, for Chinese robotics stuff, I'd recommend you check out DJI, Ubtech, Clickbot and EMO robot, just to name a few. These are well-established brands. If you just get random stuff from some random kickstarter campaigns, yeah it has a high chance of ending bad (no matter it's Chinese or not).