Lorena's apartment is absolutely wonderful. As described, it is on the first floor of a building on Via de Servi, just 3 blocks from the Duomo. The street has a reasonable amount of foot traffic, though it remains quiet and peaceful. The building itself is easy to access from the street front.
The apartment is incredibly spacious. Four friends and I stayed here for a three-day weekend in May 2013. The three bedrooms and pull-out couch we're more than enough space. We were even able to invite some friends over for a glass of wine, utilizing the open architecture of the apartment.
Without a doubt, we were thrilled about the apartment. It fit each of our needs: clean, well situated, safe, and spacious. The price is also incredibly fair.
Lorena is a wonderful host. She kindly met us at the apartment, showed us around, and even gave us a bottle of wine to enjoy. At checkout, she arrived promptly and chatted with us about our travels before seeing us off.
The one complaint our group had was regarding the wireless connection. (While a wireless connection exists, it is not strong enough to use for FaceTime or Skype.) We were easily able to carry on with out the devices, but it's something to keep in mind.
All in all--fantastic apartment. You will be very pleased with your choice!
-Vik