Esther was so pleasant and enjoyable to be with, but she read most of the information she shared with us from a sheet of paper. To make this tour feel "authentic" and not something I could have done from a guidebook or the internet, Esther needs to become more familiar with her material and the area she is discussing.
If you want to tour Rome like a local, make sure to walk around the beautiful city with a local. Esther graciously welcomed me to her city and showed me some of her favorite spots, all of which were less crowded than the usual tourist haunts. She is knowledgeable and also sincerely friendly. Aventine Hill tour does not disappoint. The hill holds some wonderful vistas of the city and the keyhole view, though small, will take your breath away. I found the churches cool and peaceful - a nice antidote to the teeming St. Peter's square. Well worth your time to explore.