I'm just gonna take care of the controversy first: I like this place better than Lotus of Siam.
The hours are FANTASTIC, the service is friendly, and every single item I've had has been absolutely delicious, high quality, and not greasy at all. My favorites are the raw oysters, Salmon Larb, and Tom Yung Goong. I've been on the hunt for the perfect bowl of Tom Yum, and this is the best I've found in Vegas.