In 2005, Google came out with an email service, and like a lot of other people I signed up. I liked it because it kept spam out of my way. It was fairly miraculous how it did that. On the other hand, I didn't like the way they bundled emails into conversations. But I eventually became accustomed to that, even though to this day it's hard to manage.
I was more or less a happy Gmail user until they started trying to turn it into the dreaded Google-Plus.
Gmail is nice to have, but I don't want to blur the line between private email and public writing. The two activities should be as far apart as possible.