Chicken is good, just be specific about what you want. The same goes for the donut, sandwich, and thai tea/smoothie items. On at least half of our visits, a language barrier has been an issue, although we managed to catch it before we walked out the door with our order. They're definitely not "fast" food, but reasonable wait times for a local restaurant striving to produce quality results. Don't expect to use the drive through and have your food handed to you like a chain fast-food restaurant.
Best advice: just call in your order ahead of time :-)