We visited Barcelona during the Xmas holiday 2019, we are a family of 5.
The apartment is OK, as in the profile pictures.
Our stay was very pleasant.
We had a problem with the toilet door, but during this period of the year is very hard to find someone to fix it.
The apartment is in a semi-central location, not very tourist (and this is positive for me), but very well connected with the Tube to everywhere.
Overall our stay was very positive.