I use key-value stores so I can implement the right data model for the right problem. The article cites graph databases as a better fit for graph applications

I use key-value stores so I can implement the right data model for the right problem. The article cites graph databases as a better fit for graph applications than relational SQL databases. I'm using Redis data structures like sets and sorted sets that are 20x to 100x faster than relational databases. But I still use SQL for most CRUD operations where I care about consistency and volume isn't high enough to require sharding. There's a place for 'NoSQL', but it's not a panacea.