I can say to you that the API is tested, but I started developing with a local sense installation. For local just write:
var location = Location.Local;
var hub = location.Hub();
That's all when you can start to play. If you like to use a remoteconnection you have to use the URI ws:// -> ws for WebSockets, but the authentification in the new Server is my eyes a little bit tricky. So start local and if everything is running fine go to the next step.