These have a metal insert for the barbell that allow it to slide a bit easier off and on metal barbells. To date, this is the only brand of change plates that I have seen have this. I have a set from Nike, Elieko, and Rep. Reps get used most often.
If you don’t need it for that, say for example you need it for the Bandbell/Tsunami PT work with bands, get whatever is cheap.
Personally, these are the best in class for change weight plates. Probably the best product design that I have seen from Rep.
Performance
Value
Build Quality