People have been complaining about new MS OS's releases since windows 95. People just don't like change it's that simple. WTF is so complicated about the new start menu? It's as easy as the old start menu and it should not take you more then 20 minutes to figure out the whole thing(metro, charm bar) if you have been using a computer for the past 5 - 20 years. Why are people saying the metro looks kiddy looking and it does not belong in the corporate business world? does the gui have to look old, bland, shitty looking to meet corporate standards? I guess that's why corporations want employees wearing those damn awful, uncomfortable, penguin suits.
You can always use classical shell which is free and has the old 98, xp, 7 start menu to choose from if you feel metro is too complicated for you. I mentioned before windows 8 is actually faster to install, update, and setup than windows 7. Works nice on my dual screen no issues. The only thing I bitch about is the pricing for a single license and that's it.
People can always stay with windows 7 or even try out linux but be warned that all linux distro's are complicated to deal with if you don't have the right hardware. The open source drivers for ati radeon 6570 does not work for me i get horrible graphical glitches, crashes unless i use nomodeset and install the ati proprietary drivers but in recovery mode which I doubt regular joe knows how to do it.