If your infrastructure is already on Amazon, it simply makes the most sense to use a tool officially provided by them as an additional service, rather than having to rely on a third-party solution.
AWS Database Migration Service simplifies migrations by handling maintenance and administration, allowing focus on functionality. It is scalable, stable, and supports real-time synchronization with CDC. Security features like VPCs enhance reliability. However, support and bandwidth constraints may challenge users, especially with data type conversions like Oracle to PostgreSQL. Error messages can hinder troubleshooting. The initial setup is easy, but migrating from on-premise could benefit from more supporting features.
