I have a number of customers implementing HUB benefit for their IaaS VMs in Azure. In all cases to date this is a rebuild or new build as part of a migration. It works very well, if licensed, you should definitely be looking at this option to drive down costs.
- General information on the program. Microsoft Azure Hybrid Use Benefit
- Technical how to guide. How can I use the Hybrid Use Benefit in Azure?
- Azure documentation guide by Iain Foulds,Senior Content Developer for Azure. Azure Hybrid Use Benefit for Windows Server
- Awesome video put together by the Microsoft US EDU Azure Team. (Huge call out to Eric W. DeBord Microsoft EDU Azure TSP)
Disclaimer: Please note although I work for Microsoft the information provided here does not represent an official Microsoft position and is provided as is.