I have to say that I like Cha Am, but I know zilch about Thai food. It is pleasant enough but I don't seek it out. Perhaps I've been eathing at the wrong places. I read the Chowhound Thai posts, but nothing has moved me so far.
Anyway, loved this review of Cha Am from someone who is Thai. It's not good review. This should give you an idea.
"... our drinking water was brought in tiny kuuns, a sense of foreboding came over me. In Thailand, these ornately molded silver aluminum bowls are used for bathing ... Imagine if you went to an American restaurant and your drinking water was brought in a soggy washcloth and you were informed that you were expected to squeeze it into your mouth.
Well, gotta go. Enjoy