Had executive casino host to change my room from mandalay to Delano. Night front desk staff tried to help, BUT was shut down by the arrogant Night shift manager Kelvin, who doesn't care if guests are Noir or not. Even for regular guests, his level of professionalism in service industry is like Motel 6 equivalent (not that I ever stay there!)
It's a joke too that both Mandalay Bay VIP lounge and Delano VIP lounge staffs confirmed that Delano had rooms available last night. It's just the jerk/rude/arrogant Kelvin Night shift manager, who acted like he owned the hotel, didn't want to let guest check in. Kelvin should be demoted and relearn basic customer service skills!