A fantastic apartment, well located, with all amenities you will need during your time in Rome. Definitely recommend.
We stayed at the apartment during April. We were a large group but were able to find space for all, with three spacious bedrooms and one smaller where we accommodated our kids.
The apartment is on a 6th floor, and there is a lift (a bit small but typical of buildings in europe). We did not need a parking space, so I cannot comment on that.
The apartment has all the amenities you will need, coffee machine, kitchen, clothes washing machine, air conditioning, tv in every room. It is perfectly situated, just outside the craziness of the main touristic parts of Rome and in an area with many restaurants close by. Try Pepito's pizza, la tavernaccia for traditional roman dishes, and coffee and dessert at cafe Essenziale. there are two bus stops, tram and a train station (Roma Trastevere) nearby, all within walking distance, less than 5 minutes. You will not find yourself far from the main roman downtown
Also, you will find a market and a supermarket (DEM) in the same block. You can buy the basics for breakfast and cook, or also go to the cafes near the apartment for coffee and brioche.
Also nearby: a pharmacy, and a McDonalds.
Carmela was extremely helpful and accommodating considering our very late check-in time of 11 pm.
From the airport, take the train to Roma Trastevere. From there it is a short walk to the apartment.
Relative to places like Colosseum and Vatican City, you are only a tram ride or a train ride away. Easiest is Vatican City, since it is a couple of train stops away, taking a train from Roma Trastevere. To Colosseum, we took the tram, near Trastevere station. You can also take the tram to go to plaza venezia a or to any metro station.
All in all, we had a great time, and I definitely recommend the apartment for your stay in Rome