Considering the limited options in the area, this is one of the better choices. I walked around looking at menus for a couple hours in Chaweng and the majority places have a couple option, but not a devoted section in their menu. This is one of the few places that does. Also, the woman who runs this place is usually around and speaks English. She seems to understand what vegan is about and respects it.
My pad thai was pretty boring and also very oily though. Also had a curry which was fine.