I have a commercial microwave with exactly one dial[1]. It's great. It's more expensive than a "normal" microwave, but the UI is great, the construction is really solid and it's easy to clean. There's no external moving parts—no annoying rotating tray on the inside, and no visible latch on the door. It's clearly meant to take some abuse.
At first it was a bit annoying because frozen meals sometimes want you to run it at lower power and this microwave has no power setting. If that's a problem, I imagine there's some other similar model that does. But in practice, just running it at full power for shorter seems to work just as well.
It would look much nicer if it didn't have a cooking guide printed on it.
In Europe, I saw some consumer-grade microwaves with similarly minimalist designs, like these Gorenje microwaves[2] with two dials. I'd have gotten one of those, but I couldn't easily find them in the US. But I also did not look especially hard.
These commercial microwaves have a ceramic tray (transparent to microwaves) that the food sits on. It fills the entire bottom of the microwave. Underneath the tray is a small piece of metal bent into a particular shape attached to a spindle that rotates. The idea being that it spins around the reflected microwaves rather than the food itself.
Same principle in the combined oven/microwave from Siemens we have at home, except the microwaves come from the top. If you look well, you can even see the thing rotating.
Combination microwave + oven (with a single compartment) are win-win. In Japan, they're common and many people wonder why anybody would want a separate microwave and toaster oven: combining them takes less space and takes less time for a better result.
At first it was a bit annoying because frozen meals sometimes want you to run it at lower power and this microwave has no power setting. If that's a problem, I imagine there's some other similar model that does. But in practice, just running it at full power for shorter seems to work just as well.
It would look much nicer if it didn't have a cooking guide printed on it.
In Europe, I saw some consumer-grade microwaves with similarly minimalist designs, like these Gorenje microwaves[2] with two dials. I'd have gotten one of those, but I couldn't easily find them in the US. But I also did not look especially hard.
[1]: https://www.amazon.com/dp/B00ZTVIPZ2?ref_=ppx_hzsearch_conn_...
[2]: https://international.gorenje.com/products/cooking-and-bakin...