I had a C14 (2012), and I didn't like it - the seat was wrong and would slide me forward, but the reason I didn't try to correct it is because of how top-heavy the bike is.
I wanted to ride with my wife, but being so top-heavy didn't give me confidence. I'm not tall but I'm totally used to having the balls of my feet or just my toes down; however a top heavy bike with a passenger is more than I wanted to deal with. I wasn't going to lower it and wreck the handling, so off it went.
The ZX-14 is a great grand tourer, IMO.