We were a group of 5 persons staying in this apartment. There was plenty of space, which was good. The apartment also had two small balconies. It is not the cleanest apartment we have rented, but it was relatively cheap and did the job.
The area was relativist quiet with restaurants and cafés at a walking distance - good location in other words.
The apartment was very hot, so sleeping in this heat was a major issue for us. We asked for fans, and they were delivered on the same day. This helped a lot on the sleeping situation.
Communication was OK, but not excellent. Not all messages were replied to, and information about the check in (at the office, not the apartment) were not given until we actually arrived in Barcelona.