In the late '70s at Berkeley I was taking a programming class. I don't recall the exact class, but I remember that to do the assignments you had to log into video terminals in Cory Hall. The programming concepts were not difficult, but I simply could not get that editor to do what I wanted. It was only years later when I learned (and learned to love) vi that I realized that it was the same editor that had caused me such aggravation in college!
No, I'm happy with vim -- or more precisely, Macvim. I'm somewhat tempted to make the jump to ad, if anything, but I'm afraid the learning curve would be pretty steep for this old dog. It's also in its very early development. But I love what he's trying to do.