I use this for my powerblocks. I have the 130 pound set and it works great for them. The lip is a bit high as some have noted, but it wasn't a problem for me. Awesome stand at a really good price.
I bought this rack for my PowerBlock Elite u90 set. I like the look and price a lot better than the stands sold by PowerBlock. It was easy to assemble and looks good. The lip on each side is a bit too high. I'm still able to slide the pin into the heaviest setting but it definitely cuts it close and would be nice if the lip was shorter. My main complaint with the rack is quality control issues. The lip on the right side was bent pretty bad which wasn't a big deal but definitely an eye sore. The abs plastic that the dumbbells rest on was badly discolored. If it wasn't for the quality control issues I would give it 4 stars and probably 5 if the lip was shorter.
I bought this to use with my PowerBlock Elite 90 set. It was really easy to assemble. I really like the black finish on the stand. It is a perfect height for racking the PowerBlocks. I also like the fact that there is even more room if you have larger PowerBlocks. I'd say you can use it for the 125lbs with no problem. Only issue I have with it is the side "lip". It is too high so that if you try to use the heaviest setting on your Powerblock, you'll have a hard time getting the pin in, as the lip is too high, so you have to tilt the entire weight of the Powerblock to slide the pin in. If the side lip was lower, it would be perfect.