I gave this a very good rating, but my husband would say it was excellent. We arrived a little before 10am and booked the 10am open-air tram that took us to the planes exhibited outside. It went very slowly, so you could get good pictures and hear the explanation of the guide. That took about an hour and 10 min. After that we jumped in on a guided tour through 2 of the buildings. Our guide was well read on WW2 and gave us lots of little interesting anecdotes. In the afternoon we took the air-conditioned bus across the street to the Boneyard. Everyone was very friendly and willing to answer questions. They have a restaurant there, with items priced from $5-$12. I saw a sign saying no outside food or drinks permitted, so don't plan on bringing a picnic lunch and eating it inside. You'd have to eat it in the car. All in all, a nice day.