Only the things that it doesn't do is publish your article in the Facebook group. Well, I logged a ticket with Joomunited if they can add this features in the future release.
I hope they will add this feature very soon though they replied in the ticket that they exactly don't know how long will it take to add this feature.
Overall, it is an excellent extension to increase your traffic from social networking site. I would recommend any to buy this extension.
NOTE: There is another extension named AutoTweetNG, that one has a lots of features but not user friendly at all also they don't have easy guidelines for configuring their extension.