I have been eating at this restaurant regularly for over 3 years.
I went there twice with a friend in October, 2009, and was disappointed on both occasions. The tom-kha-gai (coconut soup) had lost it's flavor and other meals tasted different also. I thought that maybe it was the regular chef's night-off since it was early-week. So, the next time I went at a busier time of week, I ordered the same dishes. And the same result, except this time I had a big black hair in my soup.
I used to love this place, but it's not what it was. It's not all bad however, it's still a very nice environment and the Green curry is still one of the best I have had in Las Vegas.. But for more authentic Thai cuisine you may want to try Basil n Lime on Forte Apache. It's more tasty and cheaper in price.