Convenient, quiet, comfortable location for an extended stay: non-tourist area but within easy walk to local restaurants, groceries, drug stores, banks, even an urgent care center. Within walking distance to to the dazzling Montjuic area with its vistas, hiking and museums.
Very close to Barcelona's world class, tourist-friendly Metro and bus system which gave us easy access to Barcelona's Old Town and its Gothic, Born and nearby Eixample districts which are full of destinations but very busy.
Apartment itself quite suitable for a couple and perhaps one child; third floor location without an elevator worked for us but would be a challenge for some visitors.
Finally, Frederic, the owner, was very helpful in promptly retrieving and safeguarding a passport left behind in the apartment and only discovered after we left town for a week.