A database that you can use as a JSON document store or a graph database - or even both data models combined - within a single query.

Why it's awesome?

I can use one technology for so many different use cases, I'm not limited to one data model and can use a single query language that supports graph traversals and document JOINS.

It's designed to support modern microservice architectures and orchestration - e.g. via Mesosphere DCOS.