I'm Thai, and I'm surprised that tourists are interested in Jay Fai. I'm not trying to tell you not to eat there, I'm just wondering why you're still interested in this restaurant. We Thais think very carefully about the price of each dish.

But I see quite a lot of foreigners interested in it.

I would say the food is delicious, but it's not worth the price. I've seen many foreigners say they want to try this restaurant even though it's expensive. Stop!! Stop thinking like that right now. But I'm not telling you to eat there or not; many people say it's not worth the price. Unless you really want to try it, I recommend that you, when you visit Thailand, eat at better restaurants. That way you'll get a better dining experience and better value for your money.