We are an older couple, and have stayed in airbnb apartments in several countries.
This is a very charming apartment, and it's location is spot on. The major sights and museums are all within walking distance. All the equipment is in good working order. The apartment is in a safe locality, and has gated entry with a concierge.
Just round the corner, there are several small to medium non-touristy cafes, where you can eat some really good food. Nearby, you will find some grocery shops selling excellent local provisions.
The metro is a few minutes walk away. There is also a taxi stand nearby.
The terrace balcony is a lovely nook for an evening drink.
Most importantly, Raul was present at the kerb, when we reached from tiring intercontinental flights. At all times during our stay, he was available (on Whatsapp) to respond to our queries.