I usually use Express.js or Restify.js for simplicity. But I'm wondering if it's better to use a more full-featured framework like Kraken.js or Sails.js, especially for larger projects.

I know it varies by use-case, but I'm curious to know why I don't see as many people in the node.js community embracing such full-featured frameworks; most devs that I've come across always recommend Express or Restify.