I don't know if the menu has changed since the other reviews were written but when I went there in April 2014 almost nothing on the menu could be made veg. The man at the counter spoke English but told me everything was pre-made with fish sauce and it couldn't be made without it (including the Pad Thai and curries). I couldn't see tofu on the menu at all. The only thing he could make was their crab rice without crab or fish sauce, which was essentially just white rice with green onion and bell pepper. It was better than nothing but it wasn't much.
I'd recommend going to the Lawson around the corner and grabbing a pre-made salad and rice ball for less money.
Cons: Only one vegan option, Everything has fish sauce