Maybe it's just me, but it would be nice to have the documentation say that it is nice enough to automatically open a browser window/tab to the appropriate location. I spent a good 5-10 minutes trying to figure out how I would view what it's doing in the browser, and finally just installed the gem to figure it out...
A great value-add to this would be if it would start a service on some remote server and let you view the output there, perhaps charging you for the feature.