My advice for anyone traveling to Rome: find out when this apartment is available and plan your trip around it. This is a 5 star apartment. The attention to detail that the owner has put into this apartment is unbelievable. I want her to come to the States and decorate my house.
Seriously, this is the best apartment on Airbnb. People before have commented on the layout. They are correct. If you bring others (i.e. kids) and are looking for private time, it may not be the apartment for you due to the open concept layout. However, if you are looking for a central location with easy walks to all of the major sites, wonderful breakfast and dinner eateries right at your front door, and breathtaking decor, this is your place. 10 minutes to the vatican, 25 minutes to the colosseum, 5 minutes to the trevi fountain... the best location in Rome.
The outdoor terrace was a beautful addition to our time in Rome. Sitting outside sharing a bottle of wine and a block of cheese from the local market was one of my favorite memories of the trip.
Communication was prompt and accurate. The owner uses a management company that is very nice and helpful. They can connect you with tours, food recommendations, taxi service, etc. We used them to book a van from the airport which was very helpful and reasonably priced. I would highly recommend you take them up on transport from the airport.
Honestly, you won't find a better place in Rome, especially for the price. Don't hesitate. Book this place.