Came here for dinner the other night after a failed attempt to try this place (they were closed for a week - probably summer vacation). Did not notice the sign that read "The oldest Thai restaurant in Charlotte" until leaving, but that was a good indication of longevity and the quality of their food. Now the Matthew's location is pretty new - the staff is super friendly and the dining room is ultra clean.
Our food came out rather fast after ordering (a good thing!). I had the "C-2" curry with chicken and it was delicious. The amount of rice served with the dish was perfect..... I always have trouble with my rice to mean/sauce ratio. I got a "3" heat for the spiciness and by the end of the meal, my mouth was good and warm - just the right amount.