Excellent apartment in a great location! You are on the same street as a gelato shop, a bar, and several restaurants, and are within easy walking distance of quite a few more. The car rental garages are about a block away, which is very convenient if you're planning to take any day trips. The main tourist areas are about 15-20 minutes away, so the neighborhood is a little quieter without being too remote.
As for the apartment itself, it has all the amenities you need for a pleasant stay. There are little shower kits waiting for you in the bathroom, an iron and ironing board for your clothes, and a small corner kitchenette and fridge if you decide to do any cooking (although there are so many great restaurants nearby that it would be a shame not to try them). Fast WiFi, too.
Samuele and Lavinia were very responsive and were able to accommodate our request to check in a bit early when our travel plans changed at the last minute. We would definitely recommend staying at their apartment.