My other half has Superstar loc- ons and they seem fine (the Ruffian copies) my only issue with them is that they are really long, or at least they are compared to my grips.
I bought some cheap Ruffian copies from MTB Direct ages ago, but they seem to be destroying my hands at them. They used to be fine, but after having a cycling break for a couple of years and getting back into it last year I’m struggling with blisters on the palm of my hands. After a year of hoping it’ll get better, I have bitten the bullet and bought some Renthal grips.
I will admit though that I am my own worst enemy because I prefer thinner grips and minimalist gloves.