I am normally an early adopter, and I was with Windows 8 as well. I jumped to it as soon as I could on my laptop. I attempted to use it for several months, but found myself working in a virtual Win7 environment or Debian Linux and just using Win8 as the container to hold my preferred operating systems. I switched back to Win7 and was back to being content.
Win8.1 promised to change the one thing that was so bothersome for me: The start button/start screen. I was so looking forward to having a concise, smart list of my most common applications as well as a small (as in no scrolling) list of my applications in various sub menus. I installed Win8.1 preview in a VM and lo and behold, there is a start button and a quick way to boot directly to the desktop.
Then I pressed the start button.
And the start screen popped up.
That was a waste of time, Microsoft. What good is a start button if it brings up the very interface I did not want to ever have to see again in the first place? This is the height of stupidity.