We enjoyed our Hop on Hop Off Tour of Boston. We've been to Boston about a dozen times, but never took a tour. We got a good deal on a Groupon for this tour, so we went with it this time around. Given that "hop on, hop off" was the "feature", we had several different drivers/tour guides who varied over the course of the day. Each was decent to very good. I would have liked for the route to have gone further out from the main attractions, but it was good value for the money and an excellent introduction for anyone who was new to the city.