I like that the plugin is simple and easy to use however all the sudden it stopped working.
Tried with different FB apps and domains and still couldn't get it working again. Installed an alternative plugin (NextScripts: Social Networks Auto-Poster) and everything worked like a charm again.
My FB app is authorized. The logs say that the post was published, but nothing shows on the FB page.
Another thing I dislike about this plugin is that its styling doesn't match the styling of other plugins in the plugins area. There are images and calls to actions in multiple places which distract from what the plugin is made to do.