We booked Carlo's apartment for seven weeks but checked into a hotel after one night and eventually booked a different apartment. It was the most expensive 1-night Airbnb stay we’ve had because although we were able to cancel the four weeks in September, we ended up having to pay for the three weeks in August.
Pros: (1) The apartment is a beautifully designed loft (although the photos make it look much bigger than it is); (2) The terrace is wonderful; (3) The downstairs bathroom is modern; (4) The location is great; (5) Carlo seems very nice.
Cons: (1) The listing says the apartment is air conditioned. However, in reality, while there are two small air conditioning units (one in the large living space and the other in an open upstairs office space), the units do not cool the apartment. There is no air conditioning in the bedroom, the bathrooms or the kitchen. We left the units on all afternoon and night, but the next morning the temperature was still 29C/84F degrees in the apartment; (2) The bed is not big enough for two adults. The listing says it's a queen size bed but it's actually smaller than a full size. It is what the Italians call a "piazza e mezza", basically meaning a single and a half. My husband and I (barely) slept side by side, not moving, and woke up drenched several times during the night because it was so hot; (3) The upstairs bathroom next to the bedroom is tiny with a low sloped ceiling; (4) As others have mentioned, there are more than 80 steps to get up to the apartment. The slope of the steps keeps increasing with each level.
This apartment might be great if you're a single person looking for a place during the winter who doesn't mind the climb, but it’s not for a couple or during the summer.