The airport is very large so be sure if you have a layover you think about time-wise that you may require to travel through the airport to another gate, especially when it's busy.
I was here for a morning layover at about 7am, I walked around from one gate to another and stopped at enjoyed breakfast at the Fox Sky Bar and had a few bloody marys. The airport was virtually empty.
My second layover here, packed, it was 9pm. It felt like forever to get from one gate to the other. During my trek between gates, I noticed they have like a mini-mall going on and a lot of store selection for shoppers.. they're on the pricey end though from the titles of them and I was zipping by so quick on the moving walk way.