2015 MTS/S here.... Absolutely no regrets buying her. There have been a few minor issues and one major issue. Each remedied under warranty.
The major issue was that she intermittently went into a 'Safe Mode' while riding, which limited max speed. Also, on three occasions, the bike lost total throttle... engine still running but no throttle control. Once, I lost throttle in the middle of an intersection, stranded partially in the oncoming lane. Lucky for me, there were no cars approaching at the time. I was able to push her into a No-Mans-Land, power down and restart. With both the Safe Mode and the throttle loss, I was able get the bike going again by powering down, and restarting.
This issue first appeared with 1K on the clock. I immediately took her to the Dealer and explained what had happened. The Tech said to give it a while to see if the problem would remedy itself... poss a glitch. Two years later (May 2017), and multiple 'Safe Mode' occurences/throttle losses. I'd had enough. I was ready to give her back for a 'Full Refund"... as this was a Major Safety Issue. I gave them one more crack at it before blowing my top. The Tech's had her online with the boys in Italy, They 'Finally' discovered that the Accelerometer was faulty. They replaced the part under warranty and has been Awesome since.
Never had an issue finding Neutral. Tranny is super smooth.
Desmo service at 30K...
The only issue since the Accelerometer was replaced was a leaking left fork. Happened on the way home from picking the bike up from the Accelerometer replacement. Used a Seal Mate to clean out the fork seal... hasn't leaked since.
Work that I have done myself... Oil/Filter, Coolant/Brake Flushes and Brake Pads...
No regrets... ??