This... I am an earlier adopter of Windows 8 and I actually love it. It feels to me like it's the first version of windows that is truly keyboard centric. Stuff like winkey +x can make you wonder how do you survived without that before.
I hate all the old Windows cruft that is still there, the split control panel between UIs (like user management), crappy add/remove programs, the fact that there don't seem to be many 64bit programs, not being able to find the network preferences easily - and that I can't get windows to play with my netgear router over DHCP (but that could be netgears fault). Huge updates that use up my allowance. And the horrible start screen etc.
Thank goodness for Start8 and similar products. If I could uninstall tiles to save memory, I would.
There's no hierarchy but it's actually extremely usable.