This is authentic Thai, so keep in mind medium spicy has significant kick. They don't have dedicated vegetarian frying containers, so anything such as egg rolls, or tofu which has been fried is not vegetarian. Luckily, they do have mock duck, which they will always substitute.
My favorite dish is their #30 Pha Ram Long Song - coconut milk, mock duck, and crushed peanuts on a bed of spinach. You must order it with a simple green curry substitution instead of red curry to make it vegetarian as their red curry has shrimp paste. Wait staff and cooks are not always willing to do this, however. Their #29 Pad Keow Waan green curry with mock duck and basil is also very good.
For dessert, sticky rice with Durian is very good.Pros: Excellent food
Cons: Won't always accomodate vegan changes