You can point your domain to it and use their web interface, or your preferred email app.
I wouldn't like to manage my own mail server either. While some people may be experienced at this, or enjoy the technical learning, email is just too important to me to trust myself with, so I prefer a 3rd party also.
Apart from that, in fact I have this long-term project to self-host all my stuff. So far I managed to do this only for my calendar (using Apple's CalDav server). E-Mail is my next goal but even if I have it running, I'll start transitioning slowly. After all I think it's not that much maintanance effort once it's setup as long as it's managed through Ansible or Docker.
Google mail is more feature-rich of course.