We have a new case study from one of our good partners, PayGlobal. The case study does a great job describing how WF contributes to their Exolvo solution. It also highlights the developer productivity gains that PayGlobal's consultants and customers are seeing from the Workflow designer enhancements we made in .NET 4.5 and Visual Studio 2012. From the article:
“Adopting Windows Workflow Foundation 4.5 for our Exolvo product development has made it much easier to build and maintain the complex workflows required for HR processes”
Be sure to check it out!