My wife and I spent 2 nights in Cristiana's lovely apartment and we're extremely happy with our choice.
The apartment is big, more than perfect for a group of 4 (especially thanks to the 2 bathrooms), newly refurbished and decorated with simple yet stylish furniture. And above all, we loved the fact that it was perfectly clean!
The apartment is located in a quite and well kept private garden full of blooming flowers and aromatic plants, a unique feature that makes the property a relaxing retreat although being in the middle of the busy Navigli neighbourhood.
The underground parking lot located in the basement of the property is really convenient if you use your own car (being Milan a very expensive city, 12 euros a day is pretty cheap I would say).
I couldn't meet Cristiana in person, but she made us feel welcomed through hand - written notes, real time messaging and fresh beverages in the fridge.
All in all, a pleasant experience worth recommending to others!