Doesn't look much different than the other social plugins on the front end, but the back end is organized and easy to manage.
I had a problem being able to moderate comments through my User ID instead of App ID, which was important to me since I had chosen this extension over the other free ones due to this feature. The support was quick and understanding, and worked with me over the span of a few days until they figured out what was wrong and fixed it.
Very good customer support, and a nice look and feel, with the ability to moderate comments from the front end! I would definitely recommend this extension.