Although this tour is slightly more expensive than the Big Bus, it is way better value & much superior. Our guide Steve was very knowledgeable & helpful & at each stop he accompanied us to give us history & interesting facts that we wouldn't have got otherwise. Even though our driver was not always able to sit at the spot where he dropped us off, he appeared instantly as soon as he saw us walking back. We had no waiting around & got to see a lot in 4 hours. If you want to see DC this is definitely the way to do it!