(we've hijacked your thread but this may be more interesting anyway!)
Did you get the ABS version? Seat okay and how are the brakes/forks/shock? My local(ish) dealer had a Z900 for about one day. Has lots of Z650 and one lonely 2016 Versys.
I did get the z900 abs version with the green frame.
The seat height is about 31 inches. The brakes are good though with so few miles on it I am just now bedding in the pads. Soft initial bite but plenty of power. I may go for more aggressive pads once I get more experience with the bike.
The stock suspension is very good as is. I'm 180 pounds without gear. Under hard braking there is no undue front end dive and is very compliment over rough road. By comparison, my 09 Versys had too much front end dive and was harsh going over square edge potholes.
The bike handles and turns in like a sport bike. It feels absolutely weightless while riding.
The motor is as smooth as all the testers have said. I don't notice any vibes anywhere and the throttle fuels perfectly in any application. High or low speed.
For a brief moment I considered the z650 but getting the z900 was the way to go, for me anyways. If you can believe it it is easier to ride than the 650 Versys. You are in complete control of the bike, not the other way around.
I had to pay MSRP because it's a new model and Kawasaki isn't offering any incentives yet and there aren't any leftovers yet. If you can wait and they don't all sell you may save a thousand dollars next year but I couldn't wait.
I've owned a bunch of bikes, some way more powerful some not. The z900 is perfect. I love it. If you are considering one don't hesitate. Try and get a demo ride.