Do you mean the ones that look like this:
I’ve done power cleans and they are okay. Knurling was smooth on the ones I used and the sleeves spun okay. Can’t speak to the whip as I sucked way too much to notice haha
The most annoying thing is the screw that holds the sleeves in place will almost certainly fallen out if buying second hand. This means you need to constantly re-tighten them.