We booked this apartment for a couple of days stay in Barcelona. Our flight has been coming around midnight so we have been looking for something with 24h self-checkin.
Once we retrieved the key as instruction said, we got to the apparent and found out that a) this was completely different, much smaller single hostel-like room, not the apartment we booked; and b) it was not cleaned after previous guests - bed sheets, towels not changes, etc.
We didn't have local mobile carrier, nobody has been responding for text messages in airbnb, whatsapp, etc. so we ended up having crazy night figuring out how to get somebody to solve the problem.
Fortunately one of the provided 24h phone numbers which ignored text messages responded to a call and provided a clean room for the night.

Next day in the morning Georgina provided the true apartment we booked, and submitted a money back for the first day which I'm thankful for. But overall it ended up being quite a nervous night. I guess it was a human mistake of providing a key to a wrong room, and unluckily this room wasn't cleaned up, and unluckily the guests were coming outside of working hours, so there were too many "unlucky" factors that combined together.
The apartment itself is great value for money, has everything you might need to a short/mid terms stay, the location is awesome in the hart of Gothic quarter.
Overall I recommend this place, hope hosts won't make such mistakes for anybody else.