Whenever in Dammam/Khobar this is probably one of the first places you'll ask about, be asked about, heard of, and/or visit. Everyone goes here to shop and to pass the time.
It has almost every brand name in the world from Nike to Apple Inc. It has several decent restaurants to choose from or you can opt for well-known fast food joints at the food courts.
The downside is because Saudi Arabia is very conservative single men are sometimes barred from entering on weekends. This is done to reduce the amount of harassment towards women