I think the difference are style based – some look more like a copy of a rapha yersey than others.
I have a long sleeve torm jersey, its alright, mini pump wore a hole in the centre pocket after a few months use which hasn’t happened with other quality brands.
It’s not the first jersey I reach for and I know rapha is twice the price but their jerseys really are very, very good.
Shutt vr again is alright, nothing special, just alright.
Have a look at donkey label yerseys.