I signed up for this 90min walking tour to get some historical background of the city. We didnt do the full 90min because we were expecting another patron who never showed up. Michael did his best to contact her and wait for her to arrive, which did affect the length of the tour; however, with only one customer (me!), we were able to move at a quick pace and cover the same content. It was an educational and enjoyable tour. Michael speaks perfect English and has lived in Italy for several years and certainly knew what he was talking about. I would highly recommend participating if you want to get your bearings at the beginning of a Roman vacation. It set the tone for the rest of my holiday trip.