We gave it a good shot at work. It really struggled with common dynamic idioms in rails, like “find” being able to return either an array or a single value. Th

We gave it a good shot at work. It really struggled with common dynamic idioms in rails, like “find” being able to return either an array or a single value. The combination of verbose type definitions and limited support for the kind of types rails often uses made it a poor ROI for us, but it did find some bugs.