Personally, I’m not a huge fan of built ins, or things that are too bulky. For this reason, I choose to use multiple single burner stoves, which can be used either inside or outside without duplication. I have a collapsible oven that folds flat when not in use, that can be used either on top of one of my burners, or even with any variety of other types of burners to and including trangia alcohol stoves or even the pop can backpacking stoves. In all, this gives me up to 4 usable burners, plus a usable oven, all at the same time. I don’t normally need that much, but it’s sure nice to have the option when you need it.
The other plus side to this is that if something breaks or malfunctions, everything else is still usable, and instead of a bigger all-in-one unit needing to be repaired or replaced, each individual unit is cheap and easy to replace.
Some people prefer fancy, and while there is nothing wrong with that, I tend to go the opposite direction with cheap, reliable, easy to use, easy to replace, and trouble free.
"Opportunities are everywhere, but only action makes it happen." ~ Van_Dweller