I have used Trangias, burning only meths - no fancy rigs - on exped for numerous years.
These expeds ranged from Hungary, Croatia, Ghana, Morrocco, to South Africa and the stoves were issued on a basis of 1stove (large round civi model) to 3 or four persons.
The meals tended to be simple pasta and sauce type afairs, sometimes rice, sometimes scrambled eggs.
The pans fared equally well on open fires - when we would do more adventurous meals as we could grill meat etc as well as use the pots and pans. The pans can fake up a pretty good oven for bread rolls as well.
I never had a stove fail
I quite like Trangias as a foolproof (almost - there was the time a twit from Guildford spilt burning meths over the floor of a school we were in, and tried to put it out with water...) robust, simple and effective cook system that works even when having been bashed, battered and soaked in river rapids. Or halfway up a mountain in the rain. Or burning "non aproved" spirit (moonshine). Or in ideal circs on the odd occassion life has been good!
It is a pity that they take a while to cook a full meal - but that gives you time to relax!
I like 'em for their simplicity and robustness, not their speed!