In in end, nothing is well integrated.
You would think the whole bloody "one language to rule them all" concept would make the JS stack the most integrated one of all.
Well to my surprise, far from it. It's a mess of hundred of moving unstable badly documented always changing components that your job is to make work together.
There is no django of the JS word. None.
And because of that, most JS projects I worked on were disposable projects, prototype in production.
Now there is no meteor in the Python word neither. But professionally, I need something solid, not an ongoing experiment.
You can make fantastic stuff with JS, but only because the platform is fantastic. The web is genius. The JS ecosystem is terrible.
But wish, I really wish the JS community would pick on the seriousness of other communities and the python one would take more risks and innovations like the JS one.