I have one of these
I bought one of these a few months ago. I use a combination of the touchscreen, touchpad and wireless mouse to use the machine.
Under normal use I don't use the touchscreen too often, however if I'm lying on the sofa with the laptop resting elevated on my legs, the touchscreen is great for scrolling documents or websites where reaching for the pad or mouse can be uncomfortable.
The touch pad is also really nice. It supports multitouch as well and comes with software pre-installed for mutlitouch gestures and other fancy bits, which I have come to learn are not standard features on Windows laptops (but are on Macs).
I do gaming and while I haven't thrown anything heavy at it, it runs Eve Online, Warhammer Online and Left 4 Dead flawlessly.
My old desktop hasn't been booted up in months.