“For the price quite a neat solution provided you are not running any heavy loads on the USB sockets. Fits easily on the board, sometimes the heatsink has to be jiggled a bit. It will not work in an official case with the official fan. If you need a fan look at the modular raspberry pi 4 case.
I have several of these on Pi4 and Pi3 and all seem to work fine, avoids the need for three plug in PSU's”