Wow, feels a bit like reading an argument about acupuncture or other fake sciences:
One man's anecdotal evidence vs. tons of proof saying the opposite.

You had a shitty experience and that's a real bummer. I don't know what happened and i sincerely hope it works out in your favor in the end.

Still though, your story is not in line with the experiences of others. [he-who-can't-be-named] has tons of happy customers both in china and abroad and is regarded as one of the, if not The, best builders of sidecars in this country. I do and will continue to recommend him when people ask me where to get the most reliable sidecar in china.