Ease of use for end users or business analysts who want an easy way to explore big datasets without having technical knowledge about how it's stored internally. The amount of storage space required can be large depending upon your dataset size which adds overhead cost if you are not paying by volume/numberofGB (which we didn't realize until much later when our bill was higher than expected). It would also help us better understand what kind(s) of queries will run well against this type of database versus others that have different types of access patterns.
ο»Ώ