I really liked this spa. I've been to several others here in Vegas and I think that the bath house is intimate & exclusive. It is not filled with vibrant lights or calming music. It's dark, sleek and sexy. If you are claustrophobic then I wouldn't recommend going.
The day spa option is only 25$. You get all day access until 8:30 pm. They have cold, warm tubs, steam room and sauna. It's almost like a maze when you get inside but it's the best spa maze I've been to!