We took two tours: one of Mystery Valley and one sunrise tour of Monument Valley. The Mystery Valley guide was not exactly knowledgable or conversant but played the flute beautifully! We felt a little ripped off as a group of 5 persons at $250 for about 3 hours. To be fair you could only see this valley with a local guide, but still. For the monument valley tour we had a more knowledgable and very cordial and sincere guide but still thought it was rather pricey at $250 for 5 persons for 3 hours.