Sergio:

We just finished our tour with Giovanna and we wanted to let you know that she did an outstanding job.  She was extremely friendly and knowledgable.  She really made our tour of the Vatican the highlight of our trip.  I will definately recommend your service to our firiends.  As I told Giovanna, we have a good friend coming to Rome in the next couple of weeks.  Thank you again for your good service

Dave and Julie, Detroit, Michigan USA