Other than the ability to automatically generate an interactive documentation for our API using Swagger UI, are there any real advantages of using Flask-RESTplus over Flask-RESTful?
I've used both, and the only reason we switched too Flask-restplus was the desire to have auto generated Swagger documentation. In my experience, there are no other noticeable differences. Flask-RESTplus started as a fork of Flask-RESTful, so if you were so inclined, you could read the commit history and see if there are any other noticeable differences.