Durable thus far.
Two cons: 1) difficulty of access for tightening the four screws. Required the use of a different wrench, and extensions plus the allen wrench due to frame preventing direct/straight access to the sockets head screws; 2) no clear indication the pump head was lubricated, and non was required by the owner upon installation. My assumption is it was lunricated and ready to use, but that may prove to be a flaw with more use.
Installed the pump without difficulty otherwise. Used the provided hardware, (4 socket screws and lock washers), but purchaser must retain other hardware from the old pump. It took several moments for the pump to come to full pressure once installed and the power washer was started. At that point it seems equal the OEM pump.