For me, I neither like nor dislike Win8. It's just another bunch of UI change for me. I've experienced change from Win3.X to Win9X years earlier (also big change in how Shell UI works) and don't think I cannot get around the difference.
So far the reason I don't install Win8 as my primary OS is a bit different. The WinPhone connecting software is still in beta. I'll wait until it's going production then do a reinstall on raw metal once.