The apartment strongest point is its location, everything is on walking distance. And because the neighborhood is just next to the real tourist places you still have cheaper restaurants next to you.
The apartment itself is as advertised: small but it works. We had some problems with a clogging shower, but Marcello fixed it the same day. As a small point to consider, like every other old building, sounds through the building travel and sound isolation is not like as in a fancy hotel.
The little kitchen works, we have used for small meal preparations. The airco is used to heat the apartment. There is also a good hairdryer available, next to iron equipment. There is a good closet with clothes hangers available, so that prevents that the room is full with your stuff.
So all good for a good price with excellent location.