There are some good things that people mentioned but for me i didn't like this airport. Restaurants and food courts close at 9. Airportrestaurants mist be open 24/7 this is a bit silly.
The LImo, deluxe taxi, maybe more expensive than the regular car. However, it is more comfortable . Besides, a driver can speak english. Even though, it is not so well :D
For a long layover the sleeping options are great! The food options are lacking. Too many duty free stores that sell all the same things. Maybe turn one of them into a bar.