they're not perfect as they're moulded out of a rigid material and are presumably trimmed out of the mould. you can't see it until you take them off, but the OE rubber grips have a lip that fits into the wheel (can see the recess in the photos), so will be a better fit. (the GRP/carbon grips just sit ontop effectively)
personal pref, but mine don't bother me that much. they're all that's available as well
mainly as the leather's also gone, but i'd thought about having my wheel retrimmed in its entirety (covering grips)