I love em. Haven’t used the other adjustable dumbbells and don’t care to. Quick and Easy to adjust. Knurling is aggressive. They’re near perfect.
Recommend waiting for a sale, they run them all the time.
Love it. Space in the basement gym is a premium. Note: squating out the 80" version is a challenge. I have mine sitting on 5" yard timber so I can squat without jamming into the cable trolleys.