We had a really nice stay in Sarah's apartment. It's a comfortable apartment in a good location in the lively Trastevere neighborhood. Just a short walk away of 2 grocery stores and some nice restaurants. The apartment itself is on the 4th floor but can easily be reached by the elevator and going down a few steps.
We have stayed here for a week and the few things we noticed in our stay is that the kitchen could have been a little bit cleaner and one shower head was missing in the bathroom, which would have made showering easier. The beds can be put together to make a double bed or be separated into two single beds, but they might be a little short for some taller people >1,80m.
But overall we had a really nice stay in this apartment and in Rome and we would really recommend this place.