Our guide, Pamen, was absolutely wonderful. My husband and I booked this tour today our honeymoon and she kept both of our interest the whole time. She was so knowledgeable about everything Roman history and answered all of our questions throuroughly. She was very considerate with the heat outside and brought us into the shade or get water any moment we could. She really made the experience better than we thought it would be. I am sure all the tour guides are amazing, but we highly recommend Pamen.
The underground is a great tour and worth it to see. A once in a lifetime experience.