Having used Windows 8 now for almost a year on a laptop with a touch screen and a pen... it just doesn't make any sense to me. Its supposed to be 'easier to use' but in fact its much more difficult. I can get by, but the less computer savvy members of my household are just stumped by it. All the functionality is hidden away in menu's requiring gestures with no explanation or consistency. Sometimes you're swiping from the bottom, sometimes the top, sometimes the left, sometimes the right, sometimes a corner... Which side or corner for a given function is not even remotely intuitive. The swiping mechanic is rather 'sticky' and requires a very precise gesture, so many times you think that maybe there is no menu, when in fact there is and you just didn't swipe it 'right'. Some apps open in metro, some in desktop, but again only someone who is computer savvy would know how to set it up such that it only chooses one or the other. The list of gripes just goes on. Each one isn't huge in and on itself, but eventually you find your self spending all your time fighting the stupid OS than working with it. Seems every time I use it I find something new that annoys me.
I think your hardware might have something to do with the swiping responsiveness? I have this same issue with some Android tablets. The other stuff you mention is just remembering where to access things. This again comes down to change. People don't like change because it's different. You had to remember where stuff was a long time ago when you first started using Windows. I have to remember how to get to certain stuff when I use my Mac/iPad. You can't get around this when things change.