FeedDemon could have been good, but it's UI sucks at the moment.  It introduces metaphors without feedback nor justifications.  On top of metaphors like Listing and Newspaper, it built too many menus and commands that looks all too similar.

In the latest version, I end up with many default channels like Amazon category feeds without an apparent means to remove them.  I tried the menus in vain but ended up trying to delete one at a time and then gave it up.  I could careless if there was some dialog somewhere.

If I can't find it, it doesn't exist.