The apartment is great! 9,5/10 We would definitely come back next time.
Localisation is very comfortable - it is quite far from Barcelona center but metro station is 2 min from apartment. Also we loved our district - mostly local people live there, it is clean and we felt safe in the evening. In front of building there is the square with local market (must see!) and convenient well equipped supermarket.
Apartment was very clean, in kitchen there was everything needed (kitchen accessories, even olive oil, dozen spices), similarly in bathroom (shampoo and soap). Check-in was easy. Air-condition was also working well. Only downside were very thin walls with one apartment - you can easily hear conversations or TV. It can be problem if you are sensitive to noise.
We also appreciated very much contact with Alba - literally she responded in max 5 minutes after every message.