I've got a non-touch Windows 8 laptop (high spec cos I perform Monte carlo calcs on it) and I wish I had bought W7 instead.
I really miss the Start menu. It was my single port of call for all my programs. I listed them all. Now I have to open a search box and type in the name (if I remember what it was) to get to my program (especially the former built in ones, like calc or paint!)
Viewing photographs is also a pain. I open the photo, and get the metro application opening. I minimise it, and it's gone! Nothing in the task bar, so I have to go to Explorer and open the photo again.
Sometimes, and I don't know whether this is the computer itself, or Windows, but I am using the trackpad and I suddenly get the widget/gadget/whatever thing appearing at the side of the screen. WTF? All I did was move teh mouse pointer to another part of the screen (and not the corner either!).
All in all, I find Windows 8 to be very frustrating. I can't find anything and the reliance on a Microsoft account is also annoying.