1. The location can't be beat. The Forum of Augustus is right across the street. The Colosseum is 5 minutes' walk away. Lots of great restaurants.
2. The apartment is comfortable and well-appointed, with working password-protected wifi, working air conditioning, etc.
3. Most importantly, Francesca was incredibly welcoming. She prepared a binder full of her restaurant recommendations and other sites to see. She provided some light snacks, and even a few beers, for us. We met at the apartment, and she was there when she said she would be.
If we come back to Rome again, we will definitely check to see if this apartment is available again!