This is really the killer feature of MongoDB its API embeds very nicely in host languages and is very intuitive to use. I work for a competitor called RethinkDB

This is really the killer feature of MongoDB its API embeds very nicely in host languages and is very intuitive to use. I work for a competitor called RethinkDB and we've spent a lot of effort trying to make something that can compete in terms of ease of use. The leap we're really trying to make is for people to not have to throw their database out with their MVP.