Which one did you get? I don't use capo for Uke as all chords are easy to play and I prefer to learn movable shapes and can transpose on the fly. For guitar I also use a d'addario and it works great for different neck sizes and shapes. Had a kyser and I gave it away.
It just didn't work. Wouldn't stay fastened and the adjustment screw could not be moved. I flung it in frustration, then got the Speedbar out. No problems at all with that one.
A number of years back I had the Kyser. It always felt as if it was in the way. If I were to get one, it would be the Planet Waves. I like the design and slim profile