MongoDB Atlas has been a foundational data platform for scaling our company's global tax infrastructure. Its managed multi-cloud architecture, built-in sharding, and operational simplicity enabled us to handle large-volume, globally distributed transactional workloads with strong consistency, performance and reliability. The platform significantly reduced our operational overhead compared to self-managed relational databases. While there are some limitations around networking flexibility, search functionality, and cost predictability at scale, overall the experience has been highly positive for mission-critical workloads where every millisecond of latency and every minute of OS uptime matters.

I have worked extensively on MongoDB and its products like CloudManager and OpsManager. It is a powerful document data store with amazing storage compression technique which I believe is one of the best in market. The flexibility it offers in choosing the replica who can participate in election is very easy to implement.