Pros: Modern, stylish, bright, & very clean apartment. Great location. 20 minute walk to the Duomo, lots of cafes and bars nearby, and a market right next door. Hosts were accommodating (eg - allowed me to hang out in the unit past check-out as I was waiting for lost luggage to be delivered).
Cons: The apartment is above a bar, and the little patch of grass across the street seems to be a hangout spot. It's pretty noisy until 2-3a morning (at least on weekend nights). Check-in was a little rough. You have to connect with the hosts by phone so they can buzz you in, but I had trouble reaching them. Seems like this may have been a fluke as other guests appear to have not had the same problem.
Overall, this is a great place and I would definitely recommend.