When a non-Thai comes up to me and says they know a really great Thai place, I usually give them a look of exaggerated doubt. I'm Thai and grew up on authentic street style food and won't settle for less. On this occasion I had to eat some humble pie with my amazing meal.
This place has the best basil stir fry outside of Thailand. Everyone I have brought here is blown away and like me, became a regular. It's always crazy busy, and is casual dining with others at the table if you don't mind that. I tend to get take out now to avoid the queue, but still call it in an hour in advance.
If you're prepared to wait (and it is worth waiting for), then you have to try this place. You could always give your number and find a drink nearby to pass the time.