Very good. Only missing thing is full text like in Inoreader and a sidebar view like the removed Live Bookmarks of Firefox. If you add those than it would be great addon.
Feedbro has built-in partial feed->full text feed engine. Right click the feed in the feed tree, select Properties and then experiment with the "Feed Entry Content" setting (change it + click Preview). Then Save. New articles loaded after that will use the new setting.
