Personally, I find myself using only one button ("start") most of time, with each press adding 30 seconds (on default power level). There are cases where this i

Personally, I find myself using only one button ("start") most of time, with each press adding 30 seconds (on default power level). There are cases where this is wrong, but for simple everyday heating tasks it works perfectly. One button would, certainly, be very Apple-like.