Congrats. I just turned over 2500 miles on my 2023 model, and my father is not far behind on his. They are fantastic bikes, and a good tune really wakes them up. Kawasaki has had some growing pains with the new model (3 recalls thus far for our 2023 models), but nothing terrible. The aftermarket was a little delayed here in the US due to the limited production numbers, but it has really started to take off. There are a lot of choices for exhaust, and the options for suspension and wheels are now trickling in. I promised myself that I was done with upgrades for a while, but I'm staring at a new set of clip-ons and front rotors that I need to install.
Kawasaki's break-in procedure is kind of comical if you choose to actually follow it - under 4k RPMs on a 400 cc bike with a 15k (actual) redline