Anna's place is excellent! Four of us stayed for a week and we enjoyed how centrally located it is to the historic center of Naples. We walked almost everywhere and really enjoyed being in the center of it all!
Anna was an exceptional host and very communicative. She arranged taxi rides for us at a special rate and even changed our timing last minute late at night. She shared some really wonderful restaurants with us. The house is very clean and spacious and it was easy to settle in for a week of relaxed travel. With four of us in the house, we did experience noise between the upstairs and downstairs bedrooms and on the stairs which was only an issue at night. However, Naples is a very loud city and this apartment is above it all and is a delightfully quiet haven.
On Anna's recommendation, we went for a tour with guide Paolo to Pompeii. Paolo was a good communicator as well, and we enjoyed spending the day with him. Our tour at Pompeii was not long enough (3 hrs + travel time) because we felt rushed from thing to thing to see everything on Paolo's list and hear his insightful descriptions. Highly recommend that you ask Paolo for more time at Pompeii so you can really absorb the incredible site without rushing. (A guide at Pompeii is pretty essential though, so recommend you go with Paolo.)