This addon is simple to use. In the free version you have 5 vpn servers to chose from when you are using it in the USA. USA (East West Central) and Canada (East and West). They also give you 10GB of bandwidth if you are willing to register with an email address and they did not spam me with tons of "offers" unlike some other sketchy addons. If you partner it with Ublock you can skip ads and keep tracking cookies to a minimum. Highly recommend using both of these together for a smooth browsing experience. You guys rock!