Separation of duties: From the frontend to the backend by allowing the frontend to fire a message to a service and continue with its processing not worrying about the results until it needs an update. Also, you can separate workflow responsibilities by separating NSB services. One service could be used to send payments to a bank, and another service can be used to provide feedback of the current status of the payment to the MVC-EF database so that a user may see the status of their payment.

Message durability: Messages are saved in queues between services so that if the services are stopped, they can start from the messages saved in the queues when they are restarted. This is done so that the messages will persist, until told otherwise.

Workflow retries: Messages, or endpoints, can be told to retry a number of times until they completely fail and send an error. The...