Vanderbilt Mansion?

Hello,

I am considering having my ceremony/reception at the Vanderbilt mansion and wanted to see if anyone has any feedback? My main concern is that the main ballroom is not big enough for dancing and a 9 piece band. I will probably have 150 people attending. I would love to here from people who have already had their wedidng there and how they thought it was.. service/food/space etc.

Thanks