Cosmos DB is gaining Traction exponentially & I would like to list the advantages of Cosmos DB here.
Globally Distributed means scalable across all countries & regions.
Low Latency is the core advantage of Cosmos DB. This is achieved through SSD based storage, planet scale flexibility providing Millisecond response time.
Flexible Consistency offered through Varying Consistency Models like Strong, Boundless, Session, Prefix, Eventual.
Flexible Pricing Model allows metering of storage & throughput independently rather than CPU/Memory/IOPs.
Elastic Scalability will scale the database based on the request volumes with No Limits. aka Horizontal Scalability
Multi-Storage Model allows storage of data in form of key-value pairs, documents, graphs & columnar
Multi-API Model allows querying the database in SQL for document, MongoDB for document, Azure Table Storage for key-value, Cassandra for columnar etc.
High Security achieved through End-to-end Encryption on data-in-transit & data-at-rest.