Frameworks are great if your application fits perfectly into the subset of applications that the framework was designed for. However the moment your application

Frameworks are great if your application fits perfectly into the subset of applications that the framework was designed for. However the moment your applications grows beyond the design boundaries of the framework, you might end up in a situation where you have to drastically rewrite the app or even do a complete rewrite. Which is why I have always been more productive long term using my own frameworks. It takes longer to get started, but once you get the train going, nothing stops it.