Ranked in these QuestionsQuestion Ranking
Pro Easy REST APIs
Through services, Feathers provides instant CRUD functionality, it also can easily expose a RESTful and real-time API through HTTP/HTTPS and websockets.
Pro Can be integrated in an existing ExpressJS project
Since Feathers itself is built on top of Express (it's a thin wrapper over socket.io, primus and Express) and because of Feathers' highly modular nature, it's very easy to integrate Feathers in an existing Express project.
Pro Plug-in any feature you need
Feathers makes extensive use of modules (which are called Feathers services). These services work like ExpressJS middleware and can be used with
Services help developers keep their applications modular and as minimal as possible, without any unnecessary libraries or bloat.
Pro Can sync events between different Node instances
Feather can sync events happening in two different Node processes or even servers in real-time. For example: an event happens in server A, the user connected to server B is instantly notified of that event.
This is done through a central Redis or Mongo collection or through a websocket libraries' clustering library.
Pro Support for different socket transports
FeatherJS uses primus which is a universal wrapper for real-time frameworks. Through primus you can easily choose which socket transport you want to use.
Con Not so widely used
Could be problematic to convince the client use this framework in his/her project.
Con Not very beginner friendly
Although the documentation for Feathers is very good, it still needs some configuration in order to get Feathers up for developing something with it.