A few facts:
Strong battery, for power
Touchscreen very good
Fan noise at high power (eg games, but Ultrabook is not intended to play, that's why not a problem and it is still pleasant)
Touchpad getting used to and very sensitive. But after a little practice you get the hang of.
Win8 getting used to but after a little practice, the operating system is still very good.
Conclusion:
Am completely satisfied and there is a good companion for university and traveling. So I can only recommend the Ultrabook.