As a conservative estimate, I have eaten at 25 Thai restaurants over my life. It is by far my favorite ethnic food and I seek out new restaurants whenever I travel. I believe I have found the best, most authentic and flavorful Thai food available at Bangkok City @ Greenville. The Satay chicken, thai spring rolls, imperial rolls and thai dumplings were delicious. The Pad Gra Prow, Thai style, which is made up of ground chicken, peppers, bamboo shoots, basil, carrots and seasonings, stir fried together with a fried egg on top was exceptional. The pad thai, crab fried rice, volcano shrimp and other dishes I cannot remember were also all great.
The wait staff, hostess (hi Mimi) and owner (hi Joe) are all friendly and personable and happy to make suggestions based on what you like. If you don't see what you want, ask and they will make it for you. Since I was only in Dallas for a week, I only got to eat at this great restaurant twice but I cannot wait to go back and try something new.
Go to Bangkok City @ Greenville, ask for some authentic thai food, and bask in the warmth of the tasty, friendly experience.
Pros: Fantastic authentic food at a reasonable price
Cons: Wasn't in Dallas long enough to try everything