Don't be turned away because it looks like a hole in the wall. Walk up the stairs - the kitchen is on the first floor to your right - and you are greeted by the friendly owner in a small restaurant. My wife and I ordered the tofu dishes with extra spice and we got what we asked. Almost too hot but after 15 minutes I realized half the heat was from the temperature. Everything cooked to order and served immediately.
Our friend ordered lemon chicken and he said it was the best he ever had and was still talking about it the next day.
Great food full of flavour.