90% of the crowd is tourists. Drinks are unbelievably expensive ($20, yes, US dollars!). Food is also extremely pricey and terrible, you're paying for the view, which is already free. Both these reasons are why most locals never come here.
When you walk out of the elevator, you're ushered to another open air bar on the right. Most people go here without realizing there's a whole other area to the left, that is much bigger, better and what Sky Bar is famous for.
I've still given this 4 stars because of the really cool overhanging bar and the undoubtedly fantastic view.