I don't know about this application, but I haven't yet seen one achieve the goal they all share, and that's making the result of aggregating all those sources not seem like cacophonous noise. It seems to me that the moment you stuff all your feeds in there and connect all those accounts the content just kind of stops to matter, there's too much of it and I lose interest in reading any of it.

Content needs exclusivity, at least in my opinion. That’s why I still use feeds for notification of new content and I always consume it on the original site.