First impression for me is that this single app allows me access to both Facebook and Twitter. The other ones I have found so far, only does one or the other. The other thing I found was that the font is really clear compared to the other apps I have.
I only started using it, so I'm rather indifferent about the widget. It seems a little cumbersome to use. It's like using the app, but only utilising 10% of the screen and reading only partial tweets and updates. The only thing really useful is knowing who tweeted or updated their FB status. It would be more useful if the text scrolled so you can read the whole update.
I only started using it this past hour or so, but it seems a little slow to me compared to similar apps. It's not that much slower, but is noticeable to me. I really notice it on the Facebook feed. The pictures tend to take a long time to load at times. They way it displays the text first is acceptible. I don't mind reading the text first and then waiting a few to several seconds before the pictures appear.