Are you kidding? None

Constant head cleaning to get any performance at all wastes ink, ink is expensive.
Noisy motor. Paper feed design is poor and lacks quantity.

Truly abysmal performance on all metrics, echo what was said before about having to clean heads. I had this professionally serviced a few months ago and it is still a terrible performer. Nothing against Epson per se but very disappointed in this machine.

Customer Service

Professional Epson shop was very unhelpful when I had to take it back and make them clean it again.

Similar Products Used:

HP

None, really.

Dysfunctional ink jets which inefficiently use ink and produces poor quality prints; Poorly designed paper loader.

As a Mac user and graphic artist, Epson has always been the printer of choice. I've owned four. My experience with Epson has been mixed: I've replace two printers for obsolescence rather than dysfunction, and was once cheated out of a mailed-in rebate. In my experience he 820 was the worst of the bunch. Nearly every time I turn on the printer (I don't print daily) I have to run through many cycles of head cleaning before anything will print. I always assumed that it was just that I had a lemon (it serviced under warranty) but as I've read here, my problems are common with the 820, I can't remember the last time I was able to print a presentable high res output, which for a graphic designer is important, but I definitely can't do that now. The jets seemed to be faulty. Maybe I have a lemon, but other than printing text, this printer is utterly useless. Also, the paper loader seems to only effectively run with one sheet at a time as it tends to pulls several sheets in at a time to disastrous and discardable result. I'm now in the market for a new printer; This time it won't be an Epson.

Good for as long as the included ink lasts, unless you don't use it often enough.

listed in summary

Worked good when I first got it, then the clogging and lines began. After running the head cleaning utility it releases so much ink into the inside of the printer that it gets onto the rollers and leaves lines all over. The head spreads it over and over again, so even cleaning the rollers manually does no good. It will not even print one page without getting the black lines down the page again.