My wife, daughter and I stayed at this location during Semana Santa 2019. It was blessedly off the beaten path, but our taxi found it easily. It also was close enough to the Cathedral that we could hear the magnificent music from the processions off in the distance. When the bells in La Giralda rang in Easter in the morning, we could see them swinging back and forth in the famous tower.
The apartment, about the size of a hotel suite, was tidy and smartly efficient. We would not recommend this place for any group over 3 people unless you didn't have luggage, because there is no where to put the luggage unless you expose it to the elements and store it on the rooftop patio.
The rooftop, by the way, is a haven. Up there, we toasted to Spain, we napped in the sunshine, we welcomed Easter morning.
We were fortunate to have found this special place.