This is a quite sturdy and heavy duty power module, which has one big design flaw- the fat and unbendable power cable comes out from the side, therefore making it not the easiest job to fit it into, well..rack. So modification of rack itself or the unit needs to be done. (I just forced it in, hope the cable survives)
As common with these types of extensions, the power switches can sometimes be weird- not fixing the on or off position..
So its quite average unit- it gets the job done, but could be much better with just more thoughful desing choices.