Well, and after years of searching, friends recommended me the AEG models, like IKE64450XB (here in Europe). And honestly, I was happy with the touch surface ever after: It reacts quickly enough and I can modify every flame at an instant. I don't even get a penny for this, I'm just satisfied. So, yeah, touch can be good, like on a smartphone, even on household devices.
On the other side, it's really hit or miss with these touch UIs: I also have an combined washing machine + dryer from the same brand and there I need to press each touch surface for at least half a second, and not touch the metal case of the machine, otherwise the touch wouldn't register. Then, the UI would sometimes hang, but still register touches, playing them back once it has caught up.