This particular tour--Roma Antica--led by guides for Scala Reala covers ancient Rome's highlights in four hours. We saw the Colosseum and the Roman Forum (the Palatine Hill was closed off or something or we would've gone there too). The $70 per person we paid Scala Reale includes a membership to their cultural organization (promoting preservation and understanding of Rome's history, etc.), a welcome packet that they have waiting for you at your hotel when you arrive (maps, brochures, recommendations, itineraries, etc.), invitations to any available orientation strolls in Rome (1-2 hour introduction walks) at no extra charge, and $50 for the actual Roma Antica walk. Our days in Rome were already well-scheduled so we couldn't make the "orientation strolls" at all, but had arranged with the tour group to do the Ancient Rome hike WELL IN ADVANCE. Only six tourists go with the guide, so you must make reservations early early early if you have a specific day and time in mind (think several months).
We met our guide Gregory and the other two couples at 2pm and began our journey at the Colosseum (I have a separate journal for that), where we saw a man get his pockets picked by a little boy right outside at the ticket area. WATCH OUT! By the way, you must pay your own separate admission into whatever sight you visit on the tour (Forum is free, Colosseum is 10,000 lire/person--$5). After Gregory's insights into the Colosseum (lots of disabusing of "Gladiator" myths), we traveled on to the Roman Forum (separate journal entry for that too). Really, I wouldn't have been able to tell heads or tails about this site if it were not for our guide's expertise. Gregory, originally from Rhode Island, has studied Classical literature, language, and history, and is currently studying for the priesthood at a Vatican university. He's been guiding tourists around Rome for three years and I can't say enough good things about him! I'm an academic (English professor) and can ask some pretty geeky historical questions--which I did--and Gregory was always up on the current scholarship about the area. My husband is an intellectual type (network systems administrator) and can ask similarly geeky questions--which he did--and Gregory always jumped right in. He's our type of guy--even can quote from "Life of Brian"!
All this is to say, really, that if you are a more casual tourist, who thinks four hours is too long to hike around an ancient site and hear the long list of emperors (including the unforgettable "Pupienus"--say it out loud) and their various exploits, this type of tour is not for you. But if you are a history buff, amateur archeologist, general smart-gal or smart-guy, get a tour with Gregory! He also takes people to the Vatican Museums, but that tour was full by the time we inquired.
Wear comfortable walking/hiking shoes, a hat and sunglasses, AND take an umbrella or rain poncho. Sunny Rome can scare up some unexpected rain showers in the afternoons!