This unit took nearly no time to set up: the DHCP server on the network gave it an address instantly. It happily supports JetDirect (port 9100/tcp) printing, but performance is lousy. Even on a 100mbit network, it did no better than 58kbytes/second throughput measured during careful tests. Our application included >22 megabyte image files to a color printer.
For low-volume printouts (say, text reports from an accounting system), this looks like a winner, but for anything requiring any real throughput, it's not going to be too useful. The same image that took two and a half minutes using this device took eleven seconds to a real HP LaserJet 4100 printer.
I installed this device simply by accepting all the defaults in the setup. I'm using an Epson 900 Stylus ink printer. It's the default printer for all the computers on my network. It's attached to a 10BaseT hub that is connected to a Linksys 4-port DSL/Cable modem router. DHCP is enabled in the router and the print server uses that for an IP address. It's all working with no problem.