Cristina's apartment is lovely! Both the living room and the walkway to the apartment have a splendid view of the Duomo! The location is fantastically central – the farthest attraction we visited (Piazzale Michaelangelo) was 20 minutes away on foot and everything else was basically 10 minutes within walking distance (landmarks, restaurants, and tons of gelato). Despite being right in the middle of town, the noise and the city lights weren't a problem – and waking up to bells was fun! At night, the surrounding area is busy and we felt fairly safe walking back to the apartment at late hours.
Cristina was friendly and communicative throughout the entire process up to our arrival. Our flight into Italy was delayed by four hours – screwing up all of our train tickets and delaying our check-in time – but we still arranged to check-in late. The apartment came with a great hand-written booklet filled with recommendations and tips for restaurants (by the way, the coffee and those muffins at La Ménagère were amazing), where to go (and when things opened), how to buy a (real) leather jacket, etc. Also, when we arrived, the mosquitoes were still around the city, but the apartment came with repellent to help keep them away. We appreciated all of the considerate touches!