Amazon MSK's scalability is very good.
Amazon MSK offers a private network feature for secure, user-friendly use, with praised integration capabilities enabling seamless system connections. It supports scalability and the separation of concerns, aiding in efficient deployment and feature development. However, absence of autoscaling, initial configuration complexity, and high costs pose challenges. Schema support for languages like .NET needs improvement. Effective technical support enhances stability, but the integration should be more flexible to reduce operational overhead.