We visited this apartment with 2 families each with a 1 year old baby. We found this flat to be extremely accommodating, even with toys for the little ones. Rafael and his wife were also very understanding of our situation and allowed us an early check in.
The flat is right next to the metro that gets you to the heart of Barcelona in 10mins. There are a number of bakeries at the bottom of the flat where you can pick up your breckfast and for families there is a playground 2 mins walk from the apartment.
The apartment is very spacious and has every thing you could need for a city break.
Thoroughly recommend.