Amazon RDS has been the default choice for hosting Postgres in AWS, but as workloads evolve, it can become a bottleneck. Signs of danger in RDS include spending too much time managing instances, overpaying for compute and storage usage, and having a production instance that's becoming a ticking time bomb due to scaling issues, compliance problems, and slow restores. To address these bottlenecks, teams have switched to Neon, a Postgres database that offers features such as branching for ephemeral environments, autoscaling for storage and compute, and support for multitenancy, which simplifies management, reduces costs, and improves efficiency.