Undeserving of a 4 star rating.
Looks like the hotel from the Shining. 
I just wanted to let you know that the hotel staff were extremely rude to a few customers while checking people in during my stay. They used profanity when frustrated with an issue and racist comments were made regarding a group of Asian travelers. 
I also requested a double room and she said that she would check and then proceeded to give me my room cards and did not tell me that there were no doubles left in the hotel. I found this out when I got to the room. 
I called down to see if there was a mix-up and was put on hold for 20 minutes. I hung up and went back downstairs where I waited in line again and the front desk were again rude and abrupt. 
The room's washroom also got stuck several times indicating maintenance issues. 
I was taken back that a 4 star hotel would even allow lobby staff to act as unprofessionally as I experienced. I am a frequent traveler and will not be coming back to the Biltmore due to the poor customer service that you have. I stayed at 3 other 4 star hotels in the LA area the week that I was travelling and the Biltmore was by far the least deserving of its rating.