The apartment is very clean and well equipped with everything that you might need including even sleepers. There is washing machine and drying rack. It is walking distance from the subway station, and walking distance from the Plaça d'Espanya and Camp Nou. There is very nice and inexpensive Romanian restaurant just around the corner (La Mama Acasa).
Lijie is a great host, she made communication very easy, responded immediately to all our messages.
The only little issue that we had was that some people staying in another apartment came home in the middle of the night (probably drunk), and woke us up ringing the intercom in our apartment and yelling. But this of course might happen at any place.