Concurrent with the release of Windows Server 2008 R2 SP1 Beta (available here), a bunch of documentation and step-by-step guides have been released. These two posts have a good list of links for RemoteFX and Dynamic Memory:
For RemoteFX, be sure to closely review the hardware considerations document to ensure your test systems meet the requirements and also note that the blog post calls out some particular nVidia and ATI driver versions known to provide a decent experience.
I’ve been evaluating both RemoteFX and Dynamic Memory for some upcoming training I’m delivering. In a very short amount of time you can learn to implement and configure. The settings that are exposed are explained well in the documentation. For a deeper understanding of what’s going on, testing in various configurations and loads is a good idea while looking at all the new performance counters that have been added. That will give a good look at what the system is doing in different scenarios.