The place is really cool (better then pictures): located next to the Duomo (literally 30 seconds from the entrance), very clean and cozy. Have kitchen with all you need to cook if you want, supermarket is 5 minutes walking. All the major attractions are within a walking distance.
Bed was comfortable and with a pleasant sun right in the bedroom window in the morning - so amazing!
There is also a secret balcony with breathtaking view on the Duomo.
Alexander is superfriendly and helpful - can tell you which places to visit and recommend cool restaurants (cool and not expensive, btw).
For those who are interested in WiFi - there is enough connection for social networks and surfing, but don't expect HD streaming there.
Overall it was great experience and next time I will definitely stay at this place!
Thanks a lot for an amazing host!