Unlike other builds, this one does sleep now with the stock STEC 16GB, and no unknown devices in device manager (prior to installing the "Base devices" in device manager, it would not wake).
As for total install size, with almost all windows features off (Solitaire, Microsoft .NET framework, and Windows OCR left on) page file off, hibernation off and ccleaner running regularly, my install is 5.5GB / 14.1GB with the following apps installed and working:
And WoW running off of an external (I don't play, just wanted to try it since a friend transferred his install folder to my external)
The microphone and webcam both work in Skype, unlike build 6801.
Battery life has improved dramatically with sleep actually working, I can watch a full length movie in MPC or Media Center, and still browse the web for another couple of hours.
Just wanted to share my experience with this build so far