Apache KafkaApache Kafka handles real-time data integration and message streaming, ideal for industries processing IoT data and facilitating inter-application communication. Valued for high throughput, scalability, and stability, it supports analytics and microservices. However, users face challenges with monitoring, interface usability, ZooKeeper dependency, and documentation, desiring improved cloud support and deployment simplicity.
I would not subscribe to the Confluent platform, but rather stay on the free open source version. The extra cost wasn't justified.
Licensing issues are not applicable. Apache licensing makes it simple with almost zero cost for the software itself.