I have it, I am on the Beta Test team.
It is actually pretty decent and I have had no issues so far, either they figured out how to kill those annoying UserENV errors or they got a little patch to clear out the Event log 🙂
it is rather large, and contains a good amount of already available patches out there, but there are quite a few that are not public yet.
One thing I noticed was that it had some compatability fixes for Netware and Netware NDPS printing...something we live on at my employer...