I thought that the concept of NodeJS was fantastic. But in everyday use, I found it bloated and many of the libraries of rather dubious quality. After trying to use NodeJS for several projects, I have gone back to using mostly Python based servers with a couple of performant servers written in C. Have experimented with Go, but so far I haven't used it for any production servers.
I tried NodeJS because of the appeal of JavaScript on both the client & server. That side didn't really work out because client Side JavaScript is just so different.
As a web server it worked well. I put Nodejs behind HAProxy & Varnish and ended up with something reasonably robust; good for both dynamic & static content. These days I use if more for server side data handling and it is surprising what you can throw at it really - data collection and even some processing.
As you said its really good for getting stuff done.