City Bar sits between a walkway and the casino and is very open, so you can people watch around you. I sat both at a table and at the bar. I'm not sure why it got lower reviews here, but I enjoyed my experience here. It's a nice casual, busy place to people watch, and the drinks are pretty good. The bartenders were very friendly and nice unlike most casino bars. I think this is an overlooked bar at ARIA. No, you're not going to find loads of hotties here, but it is a nice place to take a break.