Got it early into roll out. Took awhile. Really annoying to download large stuff from the Windows Store. You've got a full screen app with a single tile occupying the screen, no percentage indicator, and the progress bar is actually combined in part with some pre-install setup.
One thing I really hate about Windows 8 is its attitude of not telling you what it's doing or how far along a task is. During the setup process, after the restart, there's a phase where it just says "just setting up a few more things" and the little swirly cursor. It tends to do this with all updates, either not telling you the process it's working on or making the install entirely arbitrary (it likes to install "33%" of an update, restart, and install the other "66%". The numbers clearly have no real value in terms of what it's actually doing.)
I liked Windows 7 telling you how many updates were left to install, that sorta thing. It's minor, the computer is still doing the same stuff, but humans like to know what's going on, even if they aren't influencing it. Designing a UI so that the computer doesn't appear to be doing something is not really an admirable design trait.