My wife and I along with our two teenagers (15 and 17) took private tour of the Colosseum with Roberta. She was a fantastic guide with lots of interesting facts and overall context setting that went far beyond just the tour. She customized the whole experience for us - answering all questions large and small. The communication was great - we emailed ahead of the tour to coordinate and got a text message on status 10 minutes prior to the start. The whole experience was high end from start to finish.