The appartment itself is very decent. If you plan to go out and go around the city of Barcelona, you don't need more in an appartment. It has an incerdible location as you are realy deep in the center. The beach isn't all too far away as well. However, when we arrived we had to wait in front of the appartment quiet a while to receive the keys. The walls in residential building are undortunetly a bit thin so the neighbours will hear you quiet fast and you will hear them aswell.
Despite those two things, all in all it was a good appartment mainly due to its location. For a short trip in Baercelona it is a very convinient and suitable appartment.