We've started to roll it out to power users in various companies (i.e. people that ask for it), and I have yet to have anyone say anything negative about it.
You read a tech blog though and they act like it's the apocalypse.
I find that shutting it down and even putting it on standby requires too many actions.
Metro app's don't fit in with the desktop version, they should run as a desktop app. Running a metro app breaks the Windows key which instead of bouncing you between desktop and the start screen will bounce you between the metro app and start screen..
Multiple monitors. Windows 8 corners become iffy on the join between monitors. (Why not just remove these hover areas?) The start screen seems to randomly choose a monitor to appear in. For some reason my right monitor doesn't have the clock. On the desktop, both monitors have my application icons at the bottom yet the program opens on the last monitor it was opened on instead of the monitor in which you press the button.
I love the start screen. I think its so much better than the Windows 7 start button. I think Windows8 is alright in the same way Vista was alright. It was better than XP but had a bunch of annoyances. I can see why people like Windows 8 but I can't see why anyone would say they love it.
Make sure no windows have focus (i.e., click on the background) and hit ALT+F4. This also works in vmconnect and remote desktop windows, where hitting the corners is near impossible.
For the taskbar issue, you can change that. Right-click on the taskbar, choose "Properties." Under "Show taskbar buttons on:" select another option. I personally prefer "Main taskbar and taskbar where window is open." But to each his own.
Good luck!
Full disclosure: I am a Microsoft employee.
Says it all, doesn't it?
I wouldn't call that "force". It's more like "constantly remind".
Which is what finally got me to start using the power button, which is still just one action.
Start screen appears on the last monitor you launched the modern app or charms.
For switching Start screen between multiple monitors, try Windows + PageUp (or Windows + PageDown).
You can change the taskbar settings. Right click on taskbar -> properties -> Taskbar where window is open (under show taskbar buttons on).