We stayed as a family with two small children for a week in Josep and Marijuli's spotless, bright, well appointed appartment. The flat which is exactly as it appears on the listing, is very practical and well equipped with decent kitchen equipment (appreciated when cooking 'in' a little more than one had hoped, hello small children), a good size of sturdy travel cot, but also things like a beach parasol, beach mat and a bucket and spade which the children especially appreciated.
The street is generally quiet, public transport into the centre of the city ~5mins walk away, there is a good small supermarket over the road (NB closes at 2030 and on Sundays! FYI: there is a basic late opening corner shop/grocery on C. del Mediterrani). All in all, while I'm sure there are plenty of cool things to be done in the area, we found the flat and the street were pleasant, unpretentious and comfortable and were an excellent base for our holiday.