Great location to see all of the tourist highlights of Rome. The building is on a surprisingly quiet street next to the Pantheon. It's very easy to get a cab or uber from the Pantheon if you need to, though everything is quite walkable.
The apartment is very spacious; the pictures don't do it justice. The shower is newly remodeled and is comfortable if a bit tight. The laundry room is in the unit.
Serena is an excellent host. She thought of every little detail, even a drying rack for your clothes. She's very responsive. I only wish I'd asked her for an extra set of towels - there are extra blankets in the closet but no extra towels. The mid-week clean replaced all the linens. Serena's recommendations for site seeing and restaurants were amazing.