So after living in this apartment for 3 nights, I feel I should make a complete review for it. Let's start with the good stuff: there is ventilation now for the summer, and it does NOT feel hot inside. I saw other reviews that mentioned there was no air, but I think the host has managed to acquire one. That's good! There is an electric kitchen, that cooks pretty fast, a moka machine (to heat coffee), 1 large bed and an extra bed for a third person, towels and bed linen is provided, as well as a hairdryer. What I liked was the tourist information details, the fact that they gave me a map of the city, and also offered a service to participate in a tour.
Cons: So, the girl rents her own apartment and lives in the first floor while the guests stay at her place. Her friend is in charge of the tourist information and is willing to help you with a guide. That's the business. Now talking about the apartment: we were 3 people sleeping and there was NOT enough room for the 3 of us. The dinning table is too small and has 2 shaky chairs that could break in any second. The extra bed takes too much space and it is not comfortable to sleep on it. I think 1-2 people sleeping in here is better, 3 is too much. The bed linen was dirty, maybe because it was used twice before (it smelled used, and instead of being white, it was a little bit brown).
The internet is slow! Too slow for having 3 phones connected to the router and had problems using it to navigate on internet.
The bathroom is small. It has a washing machine (that's good), but the door handle got broken on the first use, and it does not have a lock.
Finally, it was difficult to talk with the host, because she speaks only Italian. Try to reach her in Italian, other wise her friend can reach you with English (the tourist guide).
I recommend this place if you're one person traveling or two, backpackers that want to save money. But after reserving, be aware of all these details. The place is near a bus stop, and also near some tourist Attractions, it is not perfect, as other Airbnbs are.