This apartment was a nice space, which was extremely well situated - walkable to many attractions of Barcelona, and very close to a metro station and to many bus stations. The flat was kept clean, it was nice to have air conditioning (though this was only in the living room, so sometimes bedrooms could still be a bit hot overnight), and the area it is in is also a nice area (near lots of supermarkets and cafes, and generally nice)
There were two main issues that prevented this from being five stars:
1. Some of the furnishings were not high quality - for example, in some rooms the cupboards were basically unusable
2. Communication. Interhome, listed as the Airbnb host, were often slow to respond, which led to an unnecessary amount of back and forth on certain issues. Also, you get assigned a 'keyholder' who is not on Airbnb who is ultimately responsible for your stay, and some of the information given by the central interhome team was later contradicted by the keyholder