I’ve been using Windows 8 for quite some time now (10 months or so), but at first I also had trouble getting used to the new GUI. When I talk to people about Windows 8, there seem to be a lot of people that are having these troubles as well.

For those people, please read this great article before deciding to move back to an older version of Windows:
http://www.hanselman.com/blog/Windows8ProductivityWhoMovedMyCheeseOhThereItIs.aspx