Great host with great communication.
The apartment is a spacious, clean and comfortable place right in the centre of Barrio Alto. Being in the centre you will definitely hear some noise from the bars and restaurants which don't close until late at the weekend. This didn't bother us as we were out enjoying the local hospitality!
There is a bakery and supermarket opposite for all the essentials.
Only negative is the passage room, if someone is sleeping in there two of the other bedrooms are accessed through it, which means if you need to get up in the middle of the night to use the loo they will have to walk through to get to the bathroom.