The hotel is nice, and the front desk staff is very kind, helpful, and professional. The 515-bar staff is a whole other story! I found them to be dismissive, rude, and quite arrogant. Our waiter seemed irritated that as customers, we actually wanted to be served and not in a snobby way. We were patient, courteous, and kind to him. Our drinks took forever to come, and we waited 45 minutes for our dinner, and it wasn't during peak time.
Also, don't offer room service after hours if you have NOTHING to serve...LOL They stop serving alcohol at 11p. and if you wanted anything other than a salad or hummus after hours, you are screwed. OR perhaps bring your own snacks and beverages, which we would have done, had after-hours room service not been listed as an option.