That is a great little printer for free!
We got 3 of them last year, while buying 3 cameras - wife, son, mother-in-law. The Claria ink set is nice, great for glossy as you mentioned.
The canned profiles/driver from Epson works pretty well. Unfortunately, they use a simplified profile on that machine that doesn't "break out" the profiles by name (code numbers that needed a little reverse engineering to figure out what they were.) Plus they use quality settings with odd names, not numbers (like 1440 dpi.)
For 3rd party paper like the Hahnemuhle you should be fine. You might need a quick tutorial on color management settings in Photosghop, etc. to get all of the settings correct if you have not been doing photo printing in the desktop.
The settings will vary with the version of Phgotoshop, etc. that you have. Basically, once you have a profile you want to use installed, turn off color management on the printer and select the correct profile from the "Print with Preview" (on CS2) drop-down on Photoshop. You will need t select "Let Photoshop Manage Color" or similar on that sa,me page, and "No Color Management" or similar in the Epson driver under printer setup.
Have fun! These printers are great tools, excellent quality, great purchase price. Ink is a bit expensive, but ....
Best,
Michael
Digital Dog hads a good tutprtial on hsi web site, no link right now.