Expensive? Yeah, kinda. But what do you expect in Vegas. The coffee is pretty good though and the customer service is very friendly and accommodating. What I like about this place is that it's located close to Aria's sports book so after I picked up my order I walked right over to the sports book and watched some playoff hockey while trying to sober up after a long night/morning.
So, if you're staying at the Aria The Roasted Bean is worth a try...and so it the Boston Creme Pie doughnut!