Summary: The printer arrived quickly, and was pretty simple to setup. We did a few tests, sharing it from one machine and printing across the network (it's not network-ready by itself). All those tests went smoothly and without complaint. The big plus for us is that we needed to print to this printer from a custom C# application. This turned out to be pretty easy because of standardization of the Epson printer codes etc. Great buy for our purpose and would buy again.
Summary: Really solid receipt printer. Less expensive than 90% of the machines in its class, but it holds its own without an issue. Installation was slightly more involved than other reviewers had let on (it helps to know which port you're connecting this through), but overall it was still pretty simple to get working. Just make sure that you don't have an old version of the Epson receipt print driver on your computer, as this can cause the installation to fail.
Summary: Took a bit of work to get GoPayment to print but it works fine. Haven't figured out how to set it up as the Default printer for GoPayment, have to go through the process of selecting the printer each time