Buttons stopped working after warranty expired so had to pay for a service call to have it fixed. Luckily no parts were needed. I don't recall the reason right now.
It has a spinny disc, so like a potentiometer but not. It is a flat removable ring and behind it it uses a touch button of sorts
You have to pull it off amd clean it before every use for it to work and when it does work it is very fiddly to use.
And ridiculously expensive to replace for what is a glorified magnet if you happen to accidentally burn the plastic a little bit which is enough for it to becoe unusable.
We have a Smeg oven, not with touchscreen controls, but with two pushable knobs that are easily pressed (thus starting the oven) by brushing past them. This oven has the worst user experience of anything, hardware or software, I've even used.
