Buttons are great. But also critical is software. On my old prius there was one knob for temperature, and you push it sideways to change temp, intensity, mode,

Buttons are great. But also critical is software. On my old prius there was one knob for temperature, and you push it sideways to change temp, intensity, mode, etc, and that sucks during driving. I am very happy my Mazda has dedicated single-function physical buttons, and it'll automatically switch to the mode you're thinking of when you press a button. The tablet control via physical button is amazing compared to touch screen, takes a minute to get used to, but far far far far far far far less distracting when driving than a touchscreen.