There were 6 of us staying here for a week and really enjoyed it. The kitchen is very well equipped and the beds are comfortable. The location is more relaxed than the busier parts of the city and if you plan to travel to other parts of Barcelona, the Metro is a 5-10 minutes walk away. There are a few restaurants and shops close by, but mostly small grocery stores.
We were advised well in advance that we needed to call 30 minutes ahead of arriving if we wanted someone to be there to greet us. I was a bit concerned about this as you don't always know ahead of time whether or not you'll have access to internet or a phone when you're arriving from another country but since we were coming by train I was able to give a pretty good estimate of when we should arrive. Fortunately when we arrived at the train station we were able to call to alert them to our arrival. When we got to the apartment, no one was there and we were forced to wait in the rain for about 45-60 minutes until someone showed up to let us in. We called twice while we were waiting and got through on the second call, the attitude of the person operating the booking was that "we have 50 apartments, and it's raining, sometimes there are delays and you must just wait."
When David (not the same person on the phone) finally arrived he was very pleasant and took the time to show us how things worked. This negative experience definitely affected our opinion of the host (which is a company).
The address given in the itinerary was incorrect (it's for a near by hotel) and the address should be adjusted to 1 Bis.