Overall an OK place.
First the good:
Alessio is a terrific guy. He met us at the place to hand us the keys, and he had great recommendations for restaurants in the area - including a delicious GF place for my girlfriend. He's also incredibly responsive with any messages you send him, and was understanding when I forgot to leave cash for the city tax, charging me over Airbnb instead. Finally, the apartment is in a great area on a quiet street within the bustling neighborhood of Trestavere.
Now the bad:
It's a ground floor unit in a larger building. No big deal there, and I didn't think it was misrepresented. The issue is that the small windows (maybe 12"x12") you see in the pictures don't actually face outside. They connect to a moped repair shop that is literally on the other side of the wall. This causes two issues. The first is the lack of any real ventilation in the place, which probably accounts for the stagnant, musty smell throughout the place. The second is that no fresh air means it's hard to modulate the temperature, which in this case was quite warm. This was despite the fact that we were there in October and the weather was actually pretty cool at night. We tried to address it by turning on the AC, but the AC unit is apparently not working (not mentioned in the listing). Alessio said he'd swing by in the morning the second day to fix it, but that never happened. Our main approach was simply to never be in the place unless we had to in order to sleep.
I'm expecting that he might respond to this review and say that this isn't an issue, but having used Airbnb for 8 years as both a traveler and a host, I think it's fair to say that I'm not particularly prone to complaining about petty things.
All in all, just know what you're getting yourself into. Alessio is nice and the location is great, but the issues with the place mean that I wouldn't stay there again.