I have to disagree with the below reviews as i find this to be an excellent component. It works out of the box (some language adjustments had to be made, which by the way can be made within the component)
There is a link at the bottom of the component (only 1) and that is easy enough to remove if you so wish.
I usually don't post reviews here, but for this extension, I really had to.
After a problem with the G+ tab, the developer answered within hours to my support ticket and sent me detailed instructions.
Thanks for a great extension!