Same. Any microwave that can't start with one button push is a time waster IMO. That and Cancel are the only buttons I typically use.
Why bother with Cancel when you can just open the door?
I prefer 0-9 buttons, and lots of memories, mine has 3.
Cancel time-remaining if you quit cooking early. Leaving 12 seconds on the clock won't fly with OCD types, surely?
If you wanted a minimalist microwave though, you could have it reset each time the door is opened or after a minute or two of inactivity.
A big frustration is not being able to turn off the damn reminder tone though so I have to wait around to clear it when done.