If you are looking for a well located, good value, beautiful apartment then choose Matteo's Air BnB. Matteo was such an amazing host. He could not have been more hospitable, kind, and helpful during our stay in Rome. He offers a personal pick up from the airport for a cheap cost, provides all the helpful and amazing tips you need for your stay, and quickly responds to any issues you may have (although there will not be many). The apartment was clean, A/C worked really well for the hot weather of August, and everything else needed was provided.
I would highly recommend using Matteo's Air BnB if you are staying in Rome for any type of trip.