This is by far the worst hotel I have ever stayed in. The noise levels were so horrible that I checked out in the middle of the night. The police were actually called by hotel staff because of an altercation between some of the guests. The so-called "security" at this hotel doesn't even exist. The manager of the hotel is VERY insensitive toward guests. The beds were uncomfortable, and the rooms were not exactly clean, either. The food at Alexander's is good, but not worth what you pay for it. The nicest person I encountered during my stay was the nice lady from housekeeping who brought me some extra pillows.
Bottom line: DON'T STAY AT THE PLAZA!