PostgreSQL is open source, making it more cost effective to use than proprietary solutions.

PostgreSQL provides many features and tools that make it an ideal choice for enterprise use, including a multi-version concurrency control (MVCC) system, ACID compliance, support for stored procedures, triggers, and a wide array of data types.

PostgreSQL provides high availability through the use of read-only standby servers and replication.

PostgreSQL includes built-in encryption and authentication to help secure databases.

PostgreSQL offers powerful object-relational and geospatial features, allowing users to store and query complex data structures.

PostgreSQL supports both schema-less and schema-defined databases, which can be enforced with SQL syntax or procedural languages.

PostgreSQL has robust tuning capabilities, with a variety of settings and options to help improve application performance.

PostgreSQL has extensive community support, offering users with a wealth of resources to discuss and troubleshoot issues.