Yes, this place does exist! However, I wouldn't say this restaurant is particularly vegan friendly and certainly not worth the trek if you're based anywhere a bit further afield. They don't have anything vegetarian, let alone vegan, on the menu. Even pasta with tomato sauce has pieces of meat in it! The friendly waitress said the only vegan thing they could do is fried noodles. I ended up suggesting some things they could possibly make for me, and I got a lotus root salad (although unfortunately I'm not entirely convinced it was free from fish sauce) and a curry with veg which tasted lovely. I would take Palm Tree off Happy Cow listing as I can't see any reason why anyone vegan would want to go through the trouble to go there as it's not that easy to get vegan fare there. There are other places in the area with a lot more to offer to vegans, for example Cassia Spice House has a vegetarian corner on the menu and most of the dishes on it are vegan!
Cons: Difficult to get anything vegan, Difficult.to find