Our tour guide was great, very informative. The company and booking process was very professional and communication was very good (one of our City Wonders tours was canceled by the site, and we could not reschedule with City Wonders based on the timing of their other offerings). But we did go through them for this tour. We started out on a bus to the catacombs which was a bit of a distance, although the bus was very comfortable. The catacombs tour was very interesting, and it was informative to hear about early Christian burials. We then went to a beautiful church and saw the underground buildings beneath. Then the bus took us back to Barbarini where we went to the Capuchin Crypts...which were pretty freaky and kind of grotesque. Highlights were human bones arranged in chandeliers, wall sconces, all along walls, in the shape of flowers, almost any way imaginable. But at the same time, cool to experience. Would recommend this tour.