i've gone a few times. usually, i start at the seamstress to get my new clothes done... then a little shopping, yum cha/dim sum, ending the day in a spa with a foot massage, then a 1.5 hour body massage.
there is NO WAY i'd ever take my kids for the day.
(1) too busy, easy to get lost
(2) everyone smokes, even in the shopping centre
(3) it's a long and tiring day, poor kids would be utterly exhausted
(4) nothing for the kids to do, fairly boring for them