The Good: Design, grip and flanges, similar wear rates to other grips.
The Bad: None given designOverall Review: This product is about as good a lock-on grip could be. Just the right size for my average size hands, not too thick or thin, very sticky and small flanges at either ends to keep your hand in the right position. The only question is really if lock-ons are really the right grips generally, and whether you'd get less arm pump with a fully rubber grip stuck on with hairspray and alloy bar ends would reduce arm pump a bit. In my experience there is not much in it, and the convenience of lock-ons if certainly a plus, but there is a tiny bit more vibration going through the bar, but negligible.