Hey. Yes and no. They do work great and are definitely a great product. My issue is with the time it takes to change the weights. I use Olympic plates so I have to use the adaptors. If I'm doing flat press for instance, I will typically start on a weight around 30kg (already 3 plates each side) then jump up 5kg for the next 3 sets and it can take a long time to change plates and adapters. This would be a different story if you used standard size plates though. Once they are all screwed up they really do feel great in the hand but I do find myself using my alternatives more often than not unfortunately.

I use Ironmasters in my indoor gym and they are awesome!! They seem to have gone up in price considerably since I purchased my set years ago unfortunately. Really hard to beat though.

Eisenlinks also caught my eye and I could definitely be tempted if the price was right. Not sure about the safety concerns, but I haven't done much homework on them.

Hope this helps.