It's a nice and very clean flat and Marco does everything to make you feel at home.
On the pictures the place looks bigger than it really is, but anyhow the flat is nice.
Be aware that this is not a private flat but you are renting a room inside Marco's apartment - if you need your privacy or stay there as a couple maybe some other place might be a wiser option.
Also, be aware that you need to check out in the morning and can't leave your luggage at the place. (at least that was the case when I was staying there.)
Also if you stay in two you will only get one set of keys.
Location is good as it is close to the metro only a few stops away from the Duomo/ City Center.
Breakfast was included (bread, cereals, juice, milk, coffee, jam and fruit) and Marco might cook you some pasta, if you are lucky :)