I've worked quite extensively with Node, and I'd hesitate to call it a "game changer". The game has not changed - there's nothing about Node.js that fundamental

I've worked quite extensively with Node, and I'd hesitate to call it a "game changer". The game has not changed - there's nothing about Node.js that fundamentally alters the way people build web servers. I mean yes, there's the whole async thing (nothing new), but that's really only in pursuit of performance, and Go (way more performant) will catch up to Node's library selection within a few years. All that said, I quite enjoy working with it: I find Javascript pleasant, and it's easy to create elegant solutions to the problems I encounter day to day. Finally, Node powers some absolutely fantastic front-end tooling (Bower, LESS, Gulp). Even if it's not powering your sever, I recommend it as part of the front-end workflow.