I'm changing my review as this plugin doesn't work and the developer ignores my requests. But the idea was not bad.
I was looking for easy way of adding facebook commenting to my site. This plugin was my choice. This is very easy to adjust and you can set how to use it. It can be added after your content just checking the box in the settings or you can add just a small piece of code to your template and place the comment box where you need it. Also this is linked with your FB app. Also you are able to change the size of the comment box and it is self-adjusted on mobiles.
You may check it on my site to see how it is: [ link redacted, please do not post links in reviews ]