Witzend
Well over 30 years - it’s a built in combi - oven and microwave together - it does 2 big jacket potatoes with crispy skins in 14 minutes.
I dread it packing up - as far as I can tell, new ones are a lot bigger - and a lot more complicated!* and wouldn’t fit in the unit - and I don’t have space elsewhere.
*mine has only 2 functions - cook and defrost, and it’s fine.
It’ll probably mean a whole new kitchen - but that’s well over 30 years old, too.
I had this problem, I was more or less tied to the same brand when the old one failed as it was the only one that would fit the purpose built cabinet.
Now I've moved and have a much smaller kitchen I've given up on the fancy multifunction ones and just have a small very basic microwave from Tesco (£50) which I can use on the shelf of my larder cupboard. I crisp up my jacket potatoes in the airfryer.
The last three multifunction microwaves that I had only lasted a year or two, the inside of the ovens literally rusted away - probably because of condensation. Fortunately I had taken out insurance so could replace them for just the cost of installation.