For security reasons, I prefer MongoDB Atlas. It supports role-based access control, so you have an entity for each individual.
MongoDB Atlas offers scalability, seamless integration, high availability, and zero maintenance with features like automated backup. Its cloud-based nature supports diverse use cases such as IoT. However, users find it costly with room for better query performance and AWS integration. Enhancements in training, support services, and personal database backups are needed to meet expectations and improve overall user satisfaction.