This is basically comparable to a food court restaurant that has their food already prepared and the servers have their serving spoons in hand waiting for your instructions on what size of styrofoam carton to put your food in.
The difference is, they are in their own restaurant and do not have to share their tables with any other food counter.
The food itself is average for the most part but you won't leave disappointed nor still hungry. You just won't be overwhelmed in my opinion. They also have a larger selection of Thai food items to choose from so you may want to go a few times to figure out what you like best.
You probably won't pay more than $10 and if you're short on time, they are quick, even with lineups.