The apartment is very well located in a very safe and colorful neighborhood. If you're used to walking, you're 20/25 min away from the Vatican, 15 min away from the Pantheon and 30 min away from Termini Station. You have a supermarket 10 min away.
The apartment in itself is nice, modern, and well equiped (including a washing machine). The wifi and the air conditioning worked well. It's just a bit dark, but you have a small terrace, which is a real plus in the summer. In terms of size, it's perfect if you're by yourself or if you are a couple. Just make sure to bring your shower gel and shampoo, as they are not provided.
The whole process was really smooth. In sum, very good experience!