I run a startup that uses both of these. Mongo is a heck of a lot easier to configure and develop with, and works great as a general database with a rapidly ch

I run a startup that uses both of these. Mongo is a heck of a lot easier to configure and develop with, and works great as a general database with a rapidly changing schema. Elasticsearch is great at solving specific problems like searching for items in a specific way, but it's got quite a learning curve and is pretty painful to host and configure compared to Mongo where you can have a prod instance going in seconds.