I'm sure there are others who may be able to compare/contrast the first gens with subsequent models better, but here's my understanding: the engine remains the same across all models; the major upgrades are standard ABS (2011 model had optional ABS), rider modes, traction control, and revised bodywork/ergonomics. As a 2011 owner with 12k on the clock, I can say that the bike is very reliable. Look for the usual things: condition of tires and brakes, condition of chain/sprockets, did the owner keep service records, etc. If the bike is located in a damp climate or where roads are salted, look for rust/corrosion. Overall it's a solid sports tourer with great handling and plenty of power. As long as it was taken care of, it should provide you with many miles of fun. The only upgrades I have done are stainless hydraulic lines, a PUIG screen, and a Sargent seat (whoops, forgot the R&G tail tidy and Motodynamic taillight). I am kind of jealous of the revised bodywork (not only because it looks much easier to remove lol); the new models are very good looking IMO.
Best of luck whatever you choose!
Last edited by blkrabit; 04-14-2019 at 12:30 PM.