My standard interface is a finicky touchpad. Has been for ~30 years & half a dozen microwaves.
Not a crappy brand, a mid-range product I think. Costs around 180 EUR here.
I have trouble finding US shops that have it, maybe it's Europe-only brand, but hope you have better luck!
http://www.amazon.co.uk/Russell-Hobbs-Microwave-Litre-White/...
One knob for time, the other for power. Done.