Nicoletta and Vincenzo's apartment is lovely and well-appointed. It had a lot of little extras that made our stay comfortable. The bed was pleasantly comfortable, and the kitchen was relatively well-equipped for cooking. The apartment itself was spotless, and very fresh inside. The hosts' communication was very fast and very polite and helpful, and they were ready to welcome us into their home when we arrived. They also were ready with details about nice little eateries around the place to try pasta and pizza, which was very helpful. The pizza place they recommend (La Panche I think it's called) is especially good, with great food and lovely friendly service!
The only less positive point to consider is the noise. As the apartment building itself is old, sound travels very easily inside it, so when neighbours or upstairs residents made noise it could be disruptive of sleep. Keep this in mind if you are a light sleeper (like me!). This of course is not something that the hosts can control, so it is does not reflect negatively on them- they have done everything possible to make their apartment lovely and comfortable, which it is.
Lastly, location is great. We were within range of restaurants within only 10 minutes or so of walking, and public transport is very easy to find close-by too.
Overall, if you stay with these hosts, you will not be disappointed!