Adam Thai Restaurant is located about 200 metres from the hotel I was staying in, the Aonang Eco Inn. There is a tour counter under the same roof, from which you can book tours and transport. The whole setup is a part of Adam Bungalow and there is also a laundry service next door. You'll spot the place from the road.
Taste - Delicious! I had the big flat noodle (some call it kuetiau) and it was very good. My girlfriends enjoyed their pineapple fried rice and pad thai too.
Price - 355 THB for 3 pax including drinks
Ambiance - Typical tomyam restaurant
It is more expensive than in Malaysia but I found that halal food generally cost more in places where Muslims isn't the majority. The portion was good anyway. I was there for late breakfast/brunch and felt full till dinner.