We travelled here with our 6 month old crawling baby. It was no problem at all for the baby or for us. The apartment is a great size and has all you need for a comfortable stay. The location is perfect, 10min walk to beach and 20 mins to the hip part of Barcelona. Quiet at night and has great local bars just over the bridge not even 5 min walk that offer great food and ambiance.
Ines was a great host, arranged transport to and from airport and was available for anything we may have needed whilst we stayed.
Would certainly recommend this place for couples and those with a young baby.