We were a family of 3, alhough the space is big enough to host more. Came for Christmas, so no summertime idea, but in Christmas/New Year the weather was just beautiful.
Place has fully furnished kitchen, 1.5 bathroom/toilet, HUGE terrace, all amenities.
Location is in actually very old neighbourhood, but very closed to many imoprtant things: train/metro/bus 10 mins by foot, some other "local" busses even nearer. Multiple groseries nearby. Only one restaurant really close (Tapas 129), but we went twice because it is really worth it.
20 mins by foot from the city's heart.
Apartment has all you would need, fully equipped kitchen, nice living/dining room, separate bathroom+toilet and second toilet, two bedrooms.
Bottom line - no regret, would not risk another place when we come back one day.