At the moment, it's not really feasible for office-suite work, particularly if MSOffice compatibility is required.

If you're comparing it to the Q1U, though... that's around 2.5x the price, I think; results are expected to be much better, naturally. (I don't have one, but they're fairly well reputed.)

Key strength of the N8x0 is insane battery life; 5-6 hours of actually working (with some network usage), over a week just sitting idle, with no suspend/shutdown. The Q1U, on the other hand, has weaker battery life; I understand around 3 hours, but am not real sure.