We had a fantastic time in Barcelona. The apartment is right next to Sagrada Familia, which means you feel really central to the hustle and bustle.
The apartment is smaller than it looks in the photos and there were a few issues like a blocked sink, no curtain in the bedroom and no hot water (for one day!) which was a shame considering the price was quite expensive.
Overall the place was great for our needs and the digital key was useful because it meant all four guests could come and go as they please. Shower was huge, beds we comfy and location was perfect.