This apartment is wonderfully located near Barcelona's most popular attractions. It is literally a 10-15 minute walk to La Sagrada Familia and everything else is either a 10 euro or less taxi ride (we did not try public transportation but there were stops that were close).
The apartment itself was very spacious and clean. It would be great for a larger group or family. That being said, as an American, there are things that will be different. The washer and dryer are the same unit and it took longer to do laundry than a typical cycle (you also need to bring your own detergent). The shower is a European shower and not an average American one so be aware (shower door covers half of the bath). Lastly, there are plenty of plugs but no European converters so you need to bring our own. Despite these minor issues, I would stay here again given the opportunity. Ancry is incredibly helpful, quick to respond, and welcoming host. We also used them to get to and from the airport, making our airport trips much easier and hassle free.