i would give them like a 2.5 out of 5.. i have the grips and bar ends. i had the clutch side grip twist loose after the screw fell out while riding... had to go home with a totally free spinning grip, had the throttle side slip off the tube, making the bike un usable for a week. also what someone else had said about the bar ends, it has to be the worst idea ever. you have to tighten from the end, which expands a piece of rubber inside your bar end. a good idea at first, until a few months later when they are dry rot and you have to pull the rubber out with a pair of pliers (2x now)
Luckily PJ and Paige are top notch, and helped me out along the way, i ended up just getting two new screws from Home depot to fix the clutch side grip (lock tight this time, which was a nightmare to get off when i changed to FZ1 bar) and ghorilla glue on throttle side to reattach the grip to the throttle tube. (they supply an entirely new throttle tube and grip, pre assembled, my thoughts are they use super glue, which in winter contracts, in summer expands and eventually breaks like glass)
i like the looks of htem 100%, but i PERSONALLY have had issues with every aspect of them. 2.5 outta 5 for RIZOMA 5.5 out of 5 for PJ just my $.02