First thing to do is check the compatibility list for the multi-function printers it supports. If it is not on the list, it won't work and you'll be driven to distraction wondering why especially when the printer shows up during setup.
I bought this for a client of mine and although their multi-function printer was listed, mine wasn't but I installed it at my office before taking it to my client's office.
At my office, the installation was smooth and easy and my multi-function printer showed up correctly but it would not print. After trying every way possible to network share my MFP, it would not print at all.
So, not knowing whether it was the print server or my MFP at fault I went to my client's office and installed it and it worked perfectly with a multi-function printer and an Epson A3 colour inkjet.
Now, the MFP was on the list of compatible printers, whereas the print only Epson printer wasn't. I'm assuming therefore, that only MFPs need be on the list of compatible printers and all non-MFPs will work without the need to appear on the list.
This bit was a little confusing so as long as it's only MFPs that need checking, this print server is very good indeed.
The CD installs easily, instructions are a doddle and the printer is added very quickly and I was very surprised how quickly and easily it all was. I'm used to assigning ports and IP addresses but this only asks you to type a name for each port and then unless you specifically want a static IP address, it uses DHCP and off you go.
I had two printers up and running in no more than 10 minutes.
Very simple, very good BUT check that compatibility list or you'll be pulling your hair out.
4 stars and not 5 because I'm still not 100% sure about the compatibility list. If all non-MFPs work with it and only MFPs needed to be checked against their list, then it's worth 5 stars, but it wasn't made clear that this is the case.