I`ve just come out of a 2015 Z1000 and my biggest fear of getting the 10r was how uncomfortable it would be on long journeys in comparison.
I live in the Philippines and the roads there are generally pretty poor (bumpy)
I was absolutely blown away at how much more comfortable the ZX10 is than the Z1. I think it is largely to do with body position as opposed to the suspension. On the Z1 you constantly get the feeling that you are slipping forward on the seat and are always having to push yourself back so the strain on the shoulders is extreme.
The only issue I have with the ZX is that when I have my girlfriend on the back it is very straining on the wrists right from the word go.
Apart from that 1.5 hours then a quick stop is fine with me