[GordonS]

> Couples producers/consumers to the bus (unless you put in the extra work to wrap it in a very simple service)

This is an area where adding a simple layer of abstraction is a good thing - most times, all you want is something like a `Send<T>`/`Send(obj)` method, which really will translate fairly universally across message busses.

I used such a thing recently, switching out RabbitMQ for MQTT - all I really had to do was point to a new implementation of the interface!