This apartment was a great home base for exploring Barcelona. It's walking distance to many landmarks, including the Sagrada Familia, the Placa de Catalunya, Casa Battlo, La Rambla, and others. We opted to take taxis to activities that were further away (Barceloneta, Park Guell, etc. were all about a $12 ride) but it would have been simple to use public transportation as well.
The apartment was clean, beautiful, and had everything we needed for a short stay. We especially appreciated how easy it was to check in and check out - always a blessing while traveling!