Echo JS 0.11.0

why not just use http://hapijs.com/ :D

The answer to your points is simple. Some people just don't want to go away from expressjs. Express Happiness provides some tools, configuration options and other stuff that's missing from express because of its unopinionated nature. 
So that's the basic idea behind it. Keep using express but in a more structured / opinionated way.
And @davidchase, that's exaclty why is called "Express Happiness" :)

@davidchase, that's like saying "why not just use expressjs.com" 

In both you have to write boilerplate which Express Happiness (which I haven't used) seems to provide.

why not just use http://koajs.com/?happiness=true :D

I guess you haven't used hapi, express was nice for building simple solution but as this wrapper points out in the readme it's not great for complex situations without a lot more foundational work. When we moved to hapi we were able to make complex e-commerce system without any problems or mucking around so i was simply stating s switch to a more robust framework. Take the advice with a grain of salt :)