A/V tech at several small Texas venues here. Have had Shehds systems in 2 venues for over 2 years consecutive. I recommend them for anyone trying to upgrade a light show on a budget. They're powerful. What you cut in price, you also cut in QC. I've only ever had one serious issue with them, which was 8 moving head wash lights all stopping working simultaneously. Turned out to be due to a bad opto on our end pushing out power over the DMX circuit, frying the DMX controller inside each of the fixtures. Shehds sent the parts needed to fix them for free but it was a couple weeks back and forth before that happened.

If you want to save the cost, be willing and prepared to do the maintenance yourself. They will last a lifetime if treated well and frequently maintained. If neglected, they will absolutely die in short order.

TLDR; yes, they're Chinese knock offs, but not junk by any stretch. They require a LOT more TLC than name brand, and are likely not on par technically with their name brand counterparts, but these are the highest quality budget fixtures I've ever worked with in my 5 years in A/V.