The extended heal of the hand rest is nice. Some with soft skin may want to wear gloves because the knobs for the grip may be a bit abrasive for raw skin. Not a problem for me. The extension knob is not really useful. If I bought them again I would get a similar hand grip without the extension which has access to put a real and adjustable extension on it. These work best with click/trigger shifters. I have twist shifters and it kind of puts lengthens the handle bars out an inch and a half which makes your hand position a little farther away from the shifter than it would if you had click/trigger shifters. It may also work best on straight handle bars. I have a little more of a cruiser/commuter hybrid Bianci with a slightly bent handle bar and it seemed like when gripping it put my thumb in a little weird position.

These are great grips. I ordered the version with the horns, because I figured that style would give me more hand osition options. I won't restate the many other good reviews, but just wanted to add my 2 cents on two issues:
Getting the old rubbery grips off was much easier than I expected, given the multiple other comments on the subject. I stumbled across and easy way to get them off. Stand with the old grip right in front of you and the handlebar extending away from you, perpendicular to you. Working on the grip closest to you, grab a hold of the end farthest from you and stretch it out, peeling it towards you onto itself, like a banana. Once it gets about 1/3 folded back, it reduces the friction enough that you can just wrap your hand around the grip and twist it off.
Regarding installation, I was careful not to overtighten the set screws but felt they were right enough. When I went for my first ride, I discovered that the grip would still twist a little. It would not, however, slide down like it was going to come off, so I just kept going on my (31 mile) ride. I came to the conclusion that I liked the ability to twist it because depending upon the hand position, it is more comfortable in different positions. It doesn't twist on its own, just when I want to twist it, so I seem to have stumbled on just the right tension for the set screws. I have gone on several lengthy rides with it like this and have not changed that preference.
When I ordered, they said delivery would be about 2 weeks. It was a couple of days later than they originally indicated, but that was ok with me. Maybe if I had known how much I was going to like these I would have been more irked at having to wait!

I rode a 2022 Specialized Sirrus X6 fitness bike I need to return,because I decided I need longer adjusting horns. these do feel good, a place to rest your hand, and put 2 fingers on horn. switch back and forth for longer miles. Standing out of sadlle holding on it horns nubs was good..make sure to keep playing with bar adju. or yiur seat amd the grips to get the beat position for comfort. grip was fine with my fingerless Giro gloves.stability is fine.

Great value, easy install, super comfy!

I have a Specialized Sirrus. It came with ergo grips, but they never felt quite right and the rubber started to break down. I got these and it's a world of difference. Way more comfortable with a good grip and comfort texture. Really easy to install. 5 Stars, would recommend.