We stayed here as a couple in September and October and loved it! It's a really beautiful space, definitely large enough for two to be comfortable, with nice views and lots of natural light. Eli was a really friendly host and even took us for a drink with her friends.
The only downside is that the apartment was cold, even when it wasn't very cold outside - there is a thermostat to regulate the temperature but as the space is so large and open it is difficult to heat effectively and gas bills (paid separately) are quite expensive in Italy.
Otherwise, the apartment has everything you need to make yourself comfortable, store all your items for medium- or long-term stays and cook as normal, as well as an office if you are working from home. The street is quiet, there's a lovely little corner shop a few doors down with fresh veg and basic necessities, and lots of other amenities within 10 minutes' walk.