My company chooses to stay here for every convention that we have in Las Vegas. Sometimes our events are in the convention center, which is walking distance, and other times our events are in Mandalay Bay.
The only thing I don't like is the location. That is probably the only complaint that I have and it's not even that bad because I can catch an uber to wherever I need to go.
The whole entire staff is professional, very well mannered and pleasant to speak with. I have not had an issue with any of the staff that I encountered; from the valet, to the doorman, to reception, etc.
The rooms have anything you need and more. Beds are comfortable and give me the best sleep in a hotel that I can ask for. Bathroom is spacious AND has a rain shower, which I LOVE. They are definitely achieving ultimate bathroom goals with that shower.
Our company likes to stay here because there is no casino. This hotel is perfect for business and for people who like Las Vegas, but don't want to be too immersed in the night life. I do not recommend for people who are there to have a good time with friends. Everyone who stays there has a great understanding that it is more of a professional setting.