I like how easy it is to get started with this framework. It's simple enough that you can just jump right into writing some code without having any prior experience but also powerful enough so that you don't need to worry about getting stuck or confused when things are more advanced than what you're used to. The documentation could be better at times, though - sometimes they seem to have outdated information, which makes figuring out where something has changed between versions difficult. That said, if you stick around long enough (or ask questions), someone will usually help point you towards the correct answer. If you want an extremely lightweight way of building mobile applications quickly, then using RubyMotion should definitely be considered. We've been able to build our first app in less time than we would normally expect from doing native development.