Frybone: Apart from the rear drive seal leaking which was fixed on warranty (see relevant threads on forum) I have had no problems with my 2017 V7III here in Perth. Love it!
I did change out the plastic fuel filter for the metal one as a precaution (see relevant threads on forum).
Best thing I did was get the GTM fuel map, after market de-catcon mufflers, K&N air filter, remove SAS, etc and upgrade the suspension - transformed the bike. (Again, see relevant threads on forum for info.)
If the bike you are looking at has been looked after and maintained correctly it should fine. It's just run in at 9000km!
Good luck.