Yes there are still driver issues - I've had wifi and graphics card issues on my Lenovo which I had to first Google then trot on over to intel site to get a latest version which solved them. Guess this is why a PC is half the price of a Mac. But yes a desktop/laptop doesn't really need a touchscreen and you have to lean too far forward to do it so it's uncomfortable. I've got Windows 8 but effectively I'm using Windows 7. One point, though, I hear that Windows 8 is faster as it's optimised but impossible to tell as my machine is fast anyway after I ripped the hard drive out and stuck a solid state drive in.
I've had good reports from Surface users though.