I use it too, because it's the best one for my use case - it's not a website, it's in my distro's repo, and I just need something I can copy the links to feed items / open them in a browser rather than read them in the reader itself. (Most of my subscriptions are youtube channels.)

But it's very buggy. Every so often it pops up an old feed as if it's unread. Sometimes it adds new unread feeds with empty titles. I like to delete feeds after I've read them, but sometimes the delete option doesn't do anything, but if I change to another directory and back the item is gone.

There's long-standing open bugs for some / all of these.