Yeah same, I got that one as well. Several of my friends said it wasn't very informative, it's almost as informative as your Primary school to high school info evening...
Though it's good I suppose to see some of the lecturers there, and enjoy the night lights of UNSW, but other than that, the orienteering day during O-week + self-orienteering should suffice, seeing how at night time it's harder to remember where the buildings are.