Elena's apartment is really well located : closed to Sagrada Familia' Church, very closed to "Pg. de Sant Joan" and the subway's station "Verdaguer".
You can easily find restaurants next door or go for a walk in the main touristic locations of the city.
The apartment is clean and convenient, a little bit noisy at the end of the day but it's not a big deal.
Last but not least, Elena is a very good host, discreet, she speak several languages and she will give you all the information you need about the city.