Royal Orchard Thai seriously has one of the best Pad Thais I think I've ever had. I'm pretty big on Thai food, and have been to a lot of restaurants in and around the city, but this is seriously one of the best.
It is a huge portion, could possibly share for 2, and comes with chicken and shrimp. We also got beef skewers, a cashew chicken dish, the mango salad (which was just ok,) and hot and cold spring rolls that were also really good.
It's a little on the pricey side, not too over the top but I've definitely had cheaper.
If you're ever north of the city and are in the mood for great Thai, this is your place.