Has anyone here published with Kindle unlimited?

Hey all, so I've been a hobby writer since I was a teen and I'm recently diving back in with some new passion after an extended break. I am hoping to go a step further and really get my work out there/published. I've written on sites like wattpad, writers café and fanfiction.net plenty in the past and had good experiences with those platforms but, I'm considering trying to get my current project on to kindle unlimited. I was wondering If anyone's had any experience as a writer with that platform that they'd be willing to share, good or bad.