> The problem with node is it decreases your productivity tremendously.

People say this over and over, complaining about nested callbacks and what not. I can tell you from experience that it is not true. I've been working on a Node application for a few weeks now. It is our first server side Javascript endeavour as a company, I had only tinkered with it in my own time before this. And the experience is pretty good. Writing in a more functional style makes me more productive and makes quite some problems more straightforward to describe (implement).