Marta is a lovely host and it's nice to communicate with her.
The flat has everything you need (good double bed, full kitchen, washing machine) and for people with small kids Marta offers a baby bed.
The accomondation is easy but functional.
If you travel with small children you have to leave your stroller in the corridor because you have to take some steps to come to the apartment. We didn't have any problems with that, there is some space in the corridor and noone seemed to be disturbed.
The location of Marta's apartment is great to discover Barcelona. You have direct access to Metro station Sants (Line L1) which brings you directly to important places like Placa Espanya (Arena, Font Magica) or Placa de Catalunya (La Rambla) or with only one change to all other relevant spots like Barceloneta, Barri Gotic, Sagrada Familia and so on. The apartment is by foot also only 15min away from Camp de Nou.
Thank you Marta for having is, if we decide to travel to Barcelona again we would be happy to stay in your place again.