I use it to follow news updates, blogs, updates of apps that I like, some youtube channels and lemmy/reddit communities.
I'm new to using rss feeds, but it seems to reduce the time to open pages on the browser to check for updates.
Have you had issues with entire feeds spontaneously marking themselves unread? I finally uninstalled readyou after fighting with that one for a year - it's not particularly good UX when the app decides that 80+ posts in a feed are new again and worthy of a notification.
That's because Feeder does their OPML file differently. Their OPML file includes Feeder settings. You have to wait for v0.9.13 release that makes it compatible. It'll be the next release. Current release is v0.9.12
I just wish it had a better name. Anything You just makes my brain feel like it hiccup'd trying to reread the sentence parsing it a second time as a name.