Interesting how each individual see this differently.
This is the first car I've had that actually shows the cruise set speed in digits. I really like it. Yes the number display could be larger. Our 2008 Prius gave no indication at all. The 2015 Prius showed "Set" but no number. Same with my 4Runner.
When the car gets to the speed I desire I push the set button and take my for of the accelerator pedal. It just works.
If I tap the decrease or increase it changes by one mile per hour. If I hold the increase or decrease it rapidly changes in five mile per hour values.
My issues are not with cruise but rather with the ACC as it accelerates much too slowly and brakes too hard.
I am on a 10k mile road trip driving my new Clarity. The ACC made driving in stop and go traffic around Houston and LA much less stressful. However, I have not had the courage to trust the ACC when going 65 and coming up on a car in front of me that's stopped for a red light.