I really don't like microwave ovens. I use my as seldom as possible. I wouldn't even have one if I lived alone.
There are a lot of modern things I really like though. I wouldn't really want things a whole lot different. I think every generation says the same thing about the "good old days"
One thing I do miss is letter writing. I used to love to and now I just don't do it. So it's my fault really.