DO NOT BUY THIS PLUGIN.
I bought this plugin a few months ago and it worked fine for some time. stctr offered his own server in order to host the images that are shown besides Facebook posts. The server crashed and know the whole Facebook and Twitter share function doesn't work anymore.
I tried to contact stctr 2 months ago via PM and via skype chat. He is not responding and the server is still down.
Save your money and do not buy this plugin.