[Sacho]

> 5. Sub-par debugging experience.

I've worked with AngularJS and React. After spending enough time with each framework that I'm "productive" with them and don't get constantly confused by what's going on, this is now by far the most important reason to me when adopting a framework. React(and Redux) just spoil you with an awesome debugging experience, and it's just painful for me to go back to any set of tools that takes some of that away. The rest of the points I've already "suffered" through with AngularJS, and it is my opinion that they are a rough, but surmountable cost. Having a poor debugging experience, however, just kills my willingness to work.

(For the record, AngularJS has some debugging aides - you can inspect scopes pretty easily given a DOM element. However, the watches and digest cycles, which do all the heavy-lifting, are pretty much opaque - you need to have a good understanding of how your watch expressions are compiled into watch functions and place conditional breakpoints deep within the framework in order to inspect why a certain watch is not being called/being called too many times)