I would like to summarize why i recommend Lorena's apartment in 3 points:
1. Centrally located to tourist attraction (few minutes to duomo, museum etc.)
2. Living in her apartment feel like staying in your own home. Every thing that you needed are there.
3. Most important thing is she is a very good host. We arrive late (8 pm) however she wait for us after we communicate to her that we'll be late due to travel.
She respond fast to the issue and provide "written" solution in detail (down electricity).