Right now, the SCSocialStream module doesn't show comments. That's a feature that will be coming in the next release. If you'd like to make some code adjustments to add it now, you can see how
in this thread
.
As for the looks of the module itself, we'll be implementing a new theme in the next release as well which may work better for you. The initial theme we have now is responsive and will work on wider layouts, like yours, but is intended primarily for column views, like we use below.
We still may not have all the features of the other module you mention right away. We just released the social stream a month ago. It's been very well recieved by many users, but there's definitely more work to do. It takes time to add all the features you're looking for as well as different styling options to fit every site.
With that said, you can completely override the output of the feeds. For more information, see our
Social Stream documentation
.
Of course, there are things that the SCSocialStream can do that the Wall module can't, like show streams from multiple feeds (Facebook Pages & Groups, Twitter Streams and LinkedIn Company Pages).
I hope that helps,
Alex