We've eaten in at this restaurant twice, but we do prefer to order a takeaway.
It's a funny little restaurant, upstairs above a shop. It's quite small, but you do have enough elbow room if you choose to eat in. The decor reminds me of someone's living room, but decorated with Thai/Chinesey-type pictures and ornaments.
The service is super-friendly but can be extremely slow. The food, however, is well-worth any wait! Freshly cooked-to-order, there's a wide and varied choice to suit all tastes and dietary requirements. Lovely to find such a little gem of a Thai eatery in such a small town as Diss.