My association with Windows 8 began when I bought myself a Lumia 620 phone. While the interface on the phone works really great, I would not say that it is really the case with using Windows 8 on a PC. I recently got myself with laptop with Windows 8 operating system and now I am seriously thinking of re-installing the OS. First of all, there is no Start button. So people who are used to the button on the bottom left corner of the screen are definitely going to miss it. The entire front screen is cluttered with various apps. The look and feel of the screen comes out as if you are using a phone. There is a separate app/ window for the desktop, which you need to click to take you to the desktop. On the desktop, there are no buttons called My Computer etc and these need to be created as short cuts to create some of sort of look and feel like the previous versions of Windows.
It is also very difficult to actually shut down the machine. The easiest way to do is use Windows key + L. This will lock the PC and then you can choose a small icon on the right of the screen to shut down the system. The other way to shut the system down is to take the mouse all the way to the right and wait for menu to open up. When I did that for the first time, I was very surprised to find the Control Panel over there. Since there is no Start/Menu button, the entire OS is very difficult to operate (I feel). While I am still discovering new ways to use this system, within one week of use I have a feeling that I need to change the OS and go back to Windows 7 which was a much much better OS.