The line to get in was long, but moved quickly. There are lots of security measures, but if you're going up over 450m, then that's more reassuring than annoying! Views are spectacular, very busy on main lookout. $12 more gets you more intimate but less crowded view a further 33 stories higher, I thought it was worth it. On a clear day, you really do seem to be able to see forever. I wouldn't bother in poor weather.
This review is the subjective opinion of a TravelPod member and not of TravelPod.com.