I've had a 2013 and 2016 F6B. They were both incredible motorcycles and I loved them.
My opinion is my new 2018 is 10 times the bike compared to the previous Gen, hands down.
Of course that's my opinion and others are entitled to theirs. Power, handling, fuel economy, power windshield, suspension, electronics and entertainment..... it's a long list of improvements.
And yes, the 6 speed is the smoothest manual transmission I have ever ridden on a motorcycle.

Beagle