I have both the flash and mini mo. Both are very similar but the major disadvantage of mini mo over the flash is the metal handle. Every time I use the system I seem to brush up against the exposed metal which I know is primarily user error. However, hand burns has never been an issue with the flash, so it gets the advantage.
Another advantage is the 100gm gas can fits inside the whole flash system. The mini mo can fit the 230gm can inside but the burner part will not fit into one package. Even the 100gm can won't fit nicely. So for packing I bring the small can and for the trail head I use the 230gm can.
Best use of the jetboil for me is to boil a tiny bit of water and dunk a small rag to clean my face with. Its perfect before sleep and also waking up in morning.
Favorite "go to" meal, water with top ramen and can of vienna sausage. Next time I'm going to try the tongue.