I have an agency license and man.. am I glad I bought it! Not only my websites are ranking higher in Google, but also the websites of my clients are ranking above their competitions. The people behind this plugin are also very kind, helpful and there support desk are sky high! And the many updates they do because some Google did an update or some other issue. These guys immediately solve the problems and for that, I give them 5 Golden stars! greetings from the Netherlands :-)