Already got replacement balls coming in......and I figured I would disassemble, clean, and regrease.....good experience in the first place, and cheaper to just service it myself. I'm not feeling or hearing any odd noises or vibrations from it, so I think it just needs a good cleaning and bearing replacement and regrease.

Just was curious as to other's opinions on replacing it with a cartridge unit, or waiting until I want to upgrade the crankset, gearing, etc.....