If my 800 had done half of that it would have been gone. There was one time this year that it stopped navigating late at night when I really needed it, and I was questioning my sanity for thinking about getting another garmin. The people I know with 810 and 820 had more firmware problems, but I think an update this year actually fixed most of them.
But the 830 had yet to do anything I didn't like, and I ran it for 600km at a time on PBP. The bluetooth connection is really nice, at least it's nice once a connection has been established. I didn't have a computer in France, so all route uploads had to be done via bluetooth. I was a little concerned when there was a last minute course change, but the new course downloaded without issue. RWGPS has an app that I use.
Our fleche team got off to a late start because someone couldn't get the route to download onto his wahoo. I think it finally worked. i'm not sure what the problem was that time.