Our KW's are quite nice on the road. In the yard, their implementation of automatic transmissions is the singular worst of any manufacturer. You can flutter the pedal all you want, one time in ten it will suddenly decide that you stomped the pedal to the floor and now you're reversing at 20 mph toward your trailer. And there's no predicting when it will happen.
Overall our tractors are very nice, though they're getting a bit old due to the pandemic supply chain issues. I think everyone is dealing with that to some degree these days, though.