We are starting to embark on changing a few applications at work to be more modern and to start using an API that we are developing.
So far I will say that this post by Rob Conery and this tutorial about how to use Ratchet has helped me get a better understanding of how it works. Ember-CLI has also been a great tool to use at it gets out of your way, but still spring boards your development, but stubbing out the files for you. I am also liking the use of the ES6 module syntax.
Finally, I am doing all of this on Windows 7 which is working without issue once I got ruby and the sass gem installed.