This is a great apartment to stay in for two - location is incredible (Centro Storico, surrounded by loads of great restaurants and bars, and you're generally within 20-25 mins walk from most neighbourhoods/attractions too) and a cleaner comes daily to change towels, bins and re-do the bedding which you don't always get in air bnbs, felt quite hotel like.
The only downside is it is just one room and bathroom inside the private apartment, the hallway/living room space directly outside the room is shared with another apartment across the hallway so if you prefer more privacy/want a separate private living room space it might not be for you. This was not a problem for us though as we were out and about so much anyway! You can also store your luggage in the shared space after check out which was very handy.