Well, I know this is a very old thread, but for anyone new to or contemplating RM CC4 (and up), read and consider carefully.
I have worked in several schools with the RM 'overlay'. Yes, it makes some management task easier and possibly helps schools with no regular IT support to manage some complex tasks. However, from a technician\management point of view, this 'overlay' can be a nightmare, as well as the 'support' that comes with a maintenance agreement.
For any given problem you encounter with the system, reporting the issue usually (and I emphasise 'usually') results in as response that includes 'self fix' tech articles. These tech articles invariably point to other tech articles, making the fix process laborious and frustrating.
The RMMC, which is intended to make your job easier, tends to be the root of most of your support calls as the system fails to do what it says on the box. An example of this being the build process for new machines. The Trend AV (sold to us by RM) has been a constant source of failure for the last two years. Despite continuous tech articles (sometimes, the same article sent by different support member) and remote support, this regularly stops working we cannot build the machines without building them in a different location them moving them in the console to add the AV after the process. Least of all the frustrations is that the build process has to get to the very end, sometimes over an hour later, before it fails and the machine is unusable. Software rollout can sit waiting for machines to become visible, even though they show as being online on the RMMC. Group policies fail to become active unless the PCs are restarted several times (not just the two advised by RM). Processes can sit in the 'In Progress' Task area and most of the time can't be stopped until the timeout (four days!!!).
There are so many quirks in the system and very little flexibility to do anything outside the system. New feature releases from M$ tend to create the most chaos and add disturbance. The latest release (as of writing) could not be tested under the RM test area as it failed to rollout, so we have been left to manually test and rollout the release. Any system that requires this dual approach should raise questions as to why do we need the overlay in the first place?
In previous schools, I removed the RM overlay and everything became 'The Microsoft way', which was far simpler. However, for anyone who is no experience with Server OS, AD, GP, WDS, WSUS and all things MS, RM CC4 may still be the way to go.
There will be people who love the CC4 overlay and there will be others that need far more flexibility and control over their network. There are undoubtedly other very good management overlay tools, but if you are a technician\manager of a network and you can keep up with M$, it's probably far better to stay the course and do it the M$ way.
This is all personal experience and view, so it's only for consideration, not advisement.