Our group of 4 adults went on the afternoon of Mar 17. We were somewhat apprehensive about what was there. The material online suggested that it might be very slanted to children and there was very little in the usual tourist marketing. It is located on the groungs of a school. Parking is not a problem and free! The staff appears to be mainly volunteer.There are tours every hour and our guide was outstanding. We were very impressed with the displays and the interaction with the guide. Although there is a slant toward children there is more that enough for adults. This is way more than a review of the US space program, in fact it had some of the flavor of a Mr Wizard show. The gift shop was OK. Elevators make getting around easy for those who may be limited.