Hi @stevsharp, purely personal opinion, i prefer Rebus to MassTransit for these reasons:

• Possibility to integrate messaging services quickly.
• In most cases I need basic features such as pub/sub, request/response, deferred message, retry.
• It is a minimal and easily extendable framework.
• I work on small / medium sized projects.

Although I have used MassTransit in the past, and both here and on my github profile you can find examples of use, I see it more useful in contexts where there is a need for sagas, advanced routing, integrated test harness, monitoring, scheduling, etc. or the environment is enterprise type with complex requirements and need for large-scale scalability.

If you have any other questions and/or curiosities, please answer me below, and I will try to answer you as soon as possible.

Bye