I do not agree with the reviews of this tour by others. My husband and I just returned from Colorado and New Mexico and this tour was one of the highlights. We were on Brian's bus with Dave giving us history and facts as we drove to different areas. What a wealth of information both of these men have and we wished we had had more time. We loved the NPS rancher tour of Cliff Palace and felt she did an excellent job. We both enjoyed every minute of the 4 hours. We stayed at the Far View Lodge and made this tour part of a package. Well worth the money.