Pros: I am using the paeallel version with an HP4P Laserjet which was NOT listed in the compatibility table. However, it works like a charm connected to my Ethernet-connected router (hard-wired). If you have the option, the USB may provide a faster data transfer if that is a consideration for you.
Pros: Good once it's setup. Don't use the CD. Download the latest software from their website.
Cons: I was pulling my hair out trying to set its IP address. Using the software on the CD I couldn't get my changes to stick. It kept reverting to the wrong IP. I read some comments and one said CD software was no good and to download it from the website instead.
Cons: It was anything but easy to get to work in my case. I was able to see the device on my home network, but not to get it to work with my Oki laser printer without a lot fooling with it. TP-Link's tech support (via e-mail) was responsive but not really very helpful. It took a lot of trial and error, trying a number of nonstandard printer settings before one finally worked.
Pros: Plug it in, program it and let it work. I purchased 4 of these to replace D-Link usb print servers that kept dropping off the network. These have been flawless. Always best to lock them down with a static IP.
Cons: Of course you need a printer with a parallel port like the Brother lasers I'm using. Like all network print servers the printer cannot be a gdi unit. That is, some cheaper inkjets or mfc printers will not work because of the way they do bidirectional data flow. But any PCL or PS printer will work fine.
Pros: Connected to my old LaserJet 4L's parallel port and accessed via my Windows 8 PC. The installation was easy and worked the first time around. Absolutely no problems. I would highly recommend this for the price, ease of installation, and usability.