At this point, there isn't much about the dumbbells. They feel very solid and sturdy, are fairly quick to change weights, and the updated pin on the adder weights is easy and stays out of your way. Sure, the cage is a bit different compared to actual fixed dumbbells, but that's a downside I'm willing to deal with for all the other updates. I'll compare these to the two others sets of adjustable dumbbells I've owned.
Compared to the Bowflex 1090s, the Reppins are better in almost every way by a mile. The only thing the Bowflexes are better at is most quickly adjusting the weights. Compared to the IronMaster Quicklocks, it's a much closer comparison. The Quicklocks feel like a more traditional dumbbell and are slightly more balanced. The weights also shift around less. However, the Reppins are much quicker to change weights with, and I am much more willing to use the dumbbells now, whereas I was kind of finding excuses not to change weights with the IronMasters and leave them only for a few exercises per week (if that). The handle is thicker on the Reppins, so pulling movements are a bit harder; however, I use straps anyways because my grip sucks, so the handle diameter doesn't matter too much. It does feel better for pressing though. Plus, to get the Quicklocks to the same weight as the Reppins would have required me getting an add on and longer screws, so it's just so many more parts to keep track of.
Overall, I am very happy with my purchase of the Reppins. Bonus, the photo shows the size comparison of the Quicklocks and Reppins both at 75lbs. They're about the same size. I can't find any reason to reduce the performance score on these even though there are quicker adjusting dumbbells because the different is really only a few seconds instead of almost a minute like with the quicklocks. Additionally, I think these deserve the five starts for value because you get 125lb dumbbells with a quick change system and super durable construction for the price.
Performance
Value
Build Quality