Horrible customer service. We are Vegas locals staying at the M as a weekend staycation. the staff at check-in gave us a buy one glass get one free at the hostile grape, we thought it would be cool to check out. Felt judged as soon as we presented the coupon. Waitress was very rude. Then the bartender asked if we wanted another round, we stated "No we are good". He somehow mistakes this as a yes. He brings out a beer that wasn't even the one we were drinking, then when we clarified that we didn't not want another he drink he stated"I asked if you wanted more and you said yes, I guess I'll just drink it" and he walked away. Worst service at any bar I have been at in Vegas.