The location in Barrio Alto is very convenient, albeit up a pretty large hill if you're coming from the Metro with luggage. I will say that there are quiet hours beginning at 10PM, but you may hear the restaurant below until well after midnight, at least on the weekends.
Carmen was incredibly responsive. Please KNOW.. While there is a well appointed kitchen, one thing we found is there are NO food supplies (Oil, salt, pepper) so we chose not to cook as we'd have to have purchased even those basics. This seems to be common in european AirBnBs.
ALSO.. there is not heating - even in January -- which was a challenge as it was Rainy/Damp so there was no way to dry out the apartment which felt cool/damp. Carmen was clear in the description and was kind enough to lend us a complimentary heater.. so no complaints about her... just an FYI.
Thank you for all your help, Carmen - Most appreciated!
We happened to have been there during a rare rainy spat.. so