I've built a simple IIS 8 web farm on Azure VMs. The web farm has 3 instances (Windows Server 2012) using shared configuration. The load balancing is handled by the Azure's built-in load balancer.
There's much discussion about IIS Application Request Routing but I wonder what would I gain if I add it to my current web farm? I presume I could use ARR in situations where one of the servers has more resources so that more traffic is directed to that instance? Is there other benefits?