I've been to Sakun Thai twice and haven't been disappointed yet. Both times I got the lunch special with the Spicy Chili Mint Chicken for $7.99 (spicy level 7 - hot!). It came with a soup, an egg roll and a fried won ton. Not bad at all for that price.
The restaurant does looks very unassuming from the outside but the inside is clean and welcoming so don't let that deter you. While not the best I've had, it does satisfy the craving and is good if you don't want to make a longer drive and you're in the area.