I've had my R3000 for 15 months now (gee, is this how it feels at an AA meeting???)
i've done a lot of canvas printing on it and sold about 80 prints over the last year.
Am amazed at the fine detail of the r3000, and the roll feed built into the machine works quite well - only used for canvas rolls so far. I go thru a 20' roll like you wouldn't believe. Recently bought a 3880 because you can buy 40' rolls for them and cut them into sheets - larger print size.
Had a problem with clogs on the 3000 the last few months, that is, when i could come back after not using the printer for a few days, it would not pass a nozzle check. Found i could clean the nozzles easily with 3 or 4 nozzle checks, or if needed a "cleaning". Finally found a youtube video by Jose R. that showed how to clean the purge pad /capping station by carefully inserting an ink cleaning solution or windex, and then blotting it out with bounty brand paper towels.
After i did the purge pad cleaning several times, the 3000 now passes nozzle checks again with no difficulty, even after leaving it for a week with no activity.
If you're going to buy a professional quality grade printer - learn how to maintain it, and that includes cleaning the purge pad area (as i have learned) on a regular basis. There are all sorts of videos to explain this maintenance on youtube and at third party ink suppliers like inkjetmall. Lots of waste ink goes thru the purge pad on a regular basis, i.e. everytime you change the type of black ink, and also anytime you do nozzle cleaning - that all goes thru the purge pad. Cleaning the purge pad on a regular basis helps prevent clogs and ink drops on media.