I bought a factory refurbished 705 last October from eBay. I was able to register it online with Garmin immediately without any problems. After some very heavy usage during an international trip, it died completely about two weeks ago. I was able to mail it to Garmin UK and was sent a replacement unit immediately and am back up and running. The factory refurb units still carry a 1 year warranty, so I think it's a great deal.