I like the idea of highland, but I think as a practical matter bluebird promises are the best solution for production. I've used them a fair bit in production,

I like the idea of highland, but I think as a practical matter bluebird promises are the best solution for production. I've used them a fair bit in production, and I'd say yes, I'm quite happy with them. Edit: I've used async too, but I feel that async does not scale well in terms of complexity. When you start needing solid error handling while dealing with multiple async processes with complex mixtures of parallel and sequential...bluebird works, async just ends up as a mess. In my experience, anyhow. Either lib works great for simple uses cases though. :)