Piera and her mother are super friendly. The location is directly in the center. It takes only around 20 mins to go everywhere. Piera picked me up from a close train station and doubled checked my tickets for museums and other tourist attractions. She also showed me around and gave me some tips. We had breakfast together a couple of times as well. She speaks also very fluent German. Hopefully I will be back in Rome soon! Highly recommend it to anyone who wants to visit Rome :)