Our stay at the Rambla de Catalunya was really great. It went very smoothly. We did not have any issues. The host was very friendly and responsive. My favourite part of this apartment was its location. Its very close to the metro station, bus stops and the Barcelona BusTouristic stop as well. We could also walk to the Segrada Familia, Placa de Catalunya and Palau de la Musica Catalana. Since it is on one of the main thoroughfares, there are literally 100s of eating places on Rambla de Cataluny itself. There are also dozens of 24h grocery stores all around the apartment.
Overall we had a great time. I would recommend this place for anyone who wants to see Barcelona and zip around town on the public transport sysem.