What I liked about ZeroMQ the most is that it is very easy to use. We had at the same project two queue implementations: ZeroMQ and Kafka. Kafka was for heavy loaded installations and ZeroMQ for the rest. And ZeroMQ had only one configuration class that created a ZSocket bean, that's it. Now you just use "zmqPublisher.send" to push your message into the queue. For comparison Kafka had 15 classes and interfaces for configuration a publisher. The same with the subscriber. Review collected by and hosted on G2.com.

ZeroMQ has a limit on messages. Once the limit reached, it doesn't accept any new messages. And also it doesn't support topics. So if you're using several kinds of devices, you need to encode their type inside the message. Review collected by and hosted on G2.com.