RxSwfit its a powerful library how offers an alternative to handle callback hell. It makes the code more functional and easy to understand and threat callbacks and errors. In this particulary project it was essencial to chain requests in Marvel's Detail, without probaly my code would more extensive and dirty.
QuickNimble its a layer between the native sintaxe and us, it makes Unit tests easier to write and read also similar to other unit tests of different programming languages such NodeJs.
A Great framework to download images and present activity indicator and cache.
To make sure the swift project standards