Federico is very friendly and gave me tons of useful information of the area.
Location couldn't be more central with a fabulous view of Duomo. Everything is close by, the sights, the restaurants and bars. Great deli (Pegna) down the street and probably the best gelato (Grom) downstairs.
Apartment is clean, compact and functional and with a good bed. Even though the bells of Duomo are loud, one gets used to them very quickly even if one is a light sleeper.
There seems to be a limit of 500 MB for the wifi but I had no problems, connection was very fast and reliable.
Would definitely book again.