As the apartment has only few reviews, I'm going for a more detailed one:
The apartment: Clean and nice. Just as the images suggest. Five stars.
The location: Residential area. Not the most exciting one, but you will find supermarkets, some nice restaurants and bakeries. Metro and train is walking distance and gets you in the center within three to five stations.
The street in front of the apartment is quiet during night.
The communication: Upfront communication was easy. On sight, I was welcomed by a member of the house keeping stuff. The average level of English in Spain has room for improvement. You will get along, but have reasonable expectation here. If you're speaking Spanish, it will probably be a piece of cake for you.
In summary, if it is fine for you to be a little outside of the city center, this is a great apartment and I definitely recommend it.