I hope I can join in late >.<
I'm guessing you mean savoury, hmm... I guess for ultimate savoury, Ramen's the only thing coming to mind >.< Obviously not the instant type.
I'll say yes, but it really depends. For complex food, no. A microwave tends to mess up the moisture levels n stuff. But if you just need to heat up some milk or whatever, or make popcorn, then a microwave is pretty useful.