As far as the Facebook feed aspect goes, it does actually feel like a much more intuitive way to browse your news feed - if a little restricted on what you can do once you're viewing it. I do wonder if the fancy transitions and touch interactions will actually make it a longer more convoluted process overall, but for now it feels nice and new.
The other aspect is the news aggregation feature. It doesn't seem to let you add your own RSS feeds like Feedly or Reeder, but you can add topics and view the latest news from a bunch of different sources in those topics. Not bad...nice to be able to flick back and forth between the FB feed and the "news" feed quickly - also nice to have the FB features so tightly integrated into each news story (Like, etc).
Anyone else using this? Thoughts?