The spring assembly side with the roller work really well but the catch side is a cheaply stamped metal part that works OK but is ugly compared to the originals. I wish I had kept the original catches and used them with the new roller assemblies. If you already have the 1950s or newer versions of these be prepared to drill new holes during installation. You can re-use one side or the other but not both as the centerlines are different. Overall they work well and were my only solution to hardware replacement.
Quality is good. Screw size is smaller than original for my cabinets. Roller catch is not quite as pronounced. Took some adjustment. In some cases, just reused the old catch as the roller was the only piece that was broken on the old hardware. Not a perfect match, but overall, better than what you can buy at Lowe's or Home Depot.