And it's "Wordpress easy" to setup and doesn't require special access or server config?
Yes. On the first run it will take you to a wizard to set it up.
There's even a plugin for wordpress that embeds matomo itself if memory serves right.
Totally! Just set an instance up the other day. Done in five minutes, you'll only need database credentials and a somewhat "normal" PHP setup.
It's as easy as setting up GA in WordPress. Just inject the JavaScript snippet built by your Matomo instance when creating a new tracker.
I think the question was if the software itself is actually simple to set up with a commodity web host. As easy as upload via ftp and configure in webbrowser easy.