RabbitMQ has been awesome in my experience. One of the few tools that just works and has a super useful management web interface and Prometheus support among other plugins.
For those noting HA and scalability, it not meant for those use cases where (virtually infinite) horizontal scalability are the biggest concern. If you need horizontal scalability at a massive scale, use Kafka. But for the majority of cases, you can get away with limited scalability and the prod setup, development experience, and reliability of RabbitMQ are unmatched from my experience.
For those noting HA and scalability, it not meant for those use cases where (virtually infinite) horizontal scalability are the biggest concern. If you need horizontal scalability at a massive scale, use Kafka. But for the majority of cases, you can get away with limited scalability and the prod setup, development experience, and reliability of RabbitMQ are unmatched from my experience.