Extremely friendly service. Very attentive; the employees even asked us what kind of music we liked and what to play on the TV. The science fiction decor is really cool - Star Wars posters, sci-fi books, and an assortment of movie memorabilia lines the walls. But it's not too much to the point you feel like you're at Comic Con.
Both times I've been there it has been quiet and relaxing. The coffee is better than your standard Starbucks drinks, and the food menu has a large variety.
Great place to spend a rare rainy afternoon in Vegas.