My husband and our 2 year old daughter stayed at Julia's apartment last August and had a wonderful base for touring Barcelona. Great and safe neighborhood, close to grocery stores, bakeries, restaurants, playgrounds and public transportation. The apartment is on the 6th floor and we managed without issues with our toddler and her stroller and bags up and down each time - we definitely got our exercise done to offset all the paella we consumed during our stay!
The apartment is extremely well kept with all the amenities you may need to make quick meals, the bed was very comfortable as well as the sofa bed. The bedroom has no AC so it could be warm in the summer, the living room is the best choice to sleep in on a warm August night. WIFI was affordable.
Julia was very helpful and attentive to emails, the housekeeper was also friendly and accommodating.