Ranked in these QuestionsQuestion Ranking
Pro Great error handling
The caller receives the error at the end of the call regardless of where the error actually happens.
Pro Great support for iOS
Since it can work seamlessly across Swift and Objective-C, it can be integrated easily into iOS projects.
Con Can be a little verbose when working with Swift projects
Since it does not support Swift's generics, it can lead to a bit of verbosity when writing Swift software.