Excellent location, we walked everywhere apart from to the Vatican which was a short taxi ride for €15 from the very close taxi rank. Very close to the Colosseum and lots of restaurants and bars. A 24 hour Carrefour Express is 3 mins walk away where you can get most essentials.
Apartment was comfortable and clean and having 2 bathrooms was great as we were 2 families of 3. Not a huge amount of seating in the lounge area but you can use the dining area chairs as well.
Contact with the owner was quick and responsive.
The apartment is on the second floor with no lift which was fine for us. We got to the apartment from the airport on the express train (don’t forget to stamp you ticket in the green machine after you have bought it otherwise you will be fined an additional €50 per person, also not that the express train Childrens fare is only up to 12 years old, other sites are up to 14 so check before you pay) to the Termini station.
From there we bought a hop on hop off guided bus ticket and went to Colosseum stop and walked 10mins to apartment from there. After dropping bags off we then hopped back on the bus and took the tour to the Spanish steps and then walked back from there. Gave us a great start to our time in Rome.