The apartment is in a great location for Piazza Navone, The Pantheon, Borghese Gardens, Campo De'Fiori and many other places to explore. The Colosseum etc is just a 30-40 minute flat walk too. There are some fabulous cafes and restaurants just a couple of minutes away - we recommend Cipasso, Papa's Cafe and Obica. There's also a Carrefour just up the road for necessities. We didn't need to use public transport once we were there. It's also very clean, with crisp bedlinen and plenty of towels for the two of us. There is AC (no instructions but we figured it out). And the lift is a godsend when you've been walking all day! Once inside, it's peaceful and you can sleep with windows/shutters open if it's warm.
The apartment itself is quite basic. We thought the kitchen would be a squeeze for 4 people to be in together comfortably and the living room is also on the cosy side. The bedrooms are spacious although lack decent storage. Oddly, the only TV is in one of the bedrooms. We didn't want to use it but it's worth knowing. We did have a bit of an issue with the Roman plumbing - couldn't run both showers at the same time. This was actually resolved because one of the showers is tiny with a very narrow door opening. My sister - who isn't large - gave up after trying once and we both used the same shower. I'm told this can be a continental thing but I've not come across it before on my travels and it's a shame as we specifically looked for somewhere with 2 bathrooms. Anyway, I'd bear it in mind if considering the apartment for 4 adults - also that the bedroom doors don't fully close.
The listing says transfers can be arranged to/from the airport. This was confirmed but then we were told it wasn't possible, which may just have been a confusion with language. You might want a plan B. We didn't meet the host in person as all contact, including check in, was done by phone, keysafes etc, but he was very quick to respond when we asked questions.
The biggest bonus with this apartment is the superb security. As two females travelling to Rome for the first time, it was really reassuring that there are several locked doors between our space and the road outside. The Espercito were also stationed across the road which added another layer of security!