Like everyone else has reviewed, it's pricy. I will say though that the service is friendly and efficient, and the coffee is great. I had a cranberry-orange scone and that was surprisingly really, really good. It had a ton of dried cranberries on it and was lightly iced.
The location is perfect for anyone staying at Aria. It's a bit of a walk from the guest elevators but not too far. And even better news- a Starbuck's is opening up this spring close to the gym, so now there will be more than one place to get your caffeine fix!