The ones Tayda sells are comparable to ADAM TECH you can get from USA sellers. Not super high quality but I generally have no problems with them. Used thousands and thousands of them on the boards i build.
Only time they are an issue is on skunked out used solder pull chips. The roughness on a chip leg can have hook effect on a twin leaf contact and rip it out... but its hard to blame that on the socket. You would have a bad time trying to put that kind of chip into a machine pin socket too. New chips go in and out many times with out issue.
