So, compared to a service like AppHarbor [1], what advantages does this offer? AppHarbor is free for a micro instance, comes with tons of add-ons, and has excel

So, compared to a service like AppHarbor [1], what advantages does this offer? AppHarbor is free for a micro instance, comes with tons of add-ons, and has excellent git integration. [1] http://appharbor.com http://appharbor.com