I have a set of CSC D272 Ratchet 50T road wheels with a 50mm profile, 30mm external width, and 23mm internal width. I bought them 6 months ago and have put about 5,000 km on them. So far, I'm delighted and haven't had any issues. Since people were skeptical about the reliability of the Chinese 50T ratchets, I have performed a cleaning and greasing every 3 months.
I have now bought another set of CSC D272 Ratchet 50T gravel wheels with a 45mm profile, 35mm external width, and 29mm internal width. I can't give an opinion on them yet, as I have only mounted the tires and am waiting to receive the frame.