The mansion was fascinating and our guide made it come alive. Her knowledge and ability to answer non-scripted questions about the family and mansion was very impressive. The A. I. Dupont story is amazing on its own, but they have done a wonderful job making you feel like you actually know the man. The gardens and house are wonderfully maintained and the groups are small on the tours. (4-6 people) Make reservations! There are limited tickets available each day so buy in advance online. We did and they were waiting for us when we arrived.