Great place! Overall very happy with my one month stay.
Some cons: I waited 45 minutes to get my keys after travelling a lot and just wanting to go inside and relax. No microwave. Wrong gate code was given to me. And, the communication was rather bad as I would get very late responses, or none.
Pros: Super cute apartment. Bigger than I expected (although still quite small). GREAT area, close to everything and many metro stations nearby. Very peaceful and quiet residence after 7:30 all weekdays. Good kitchen despite no microwave, which made it hard for me to eat my leftovers for example. Bathroom was good, a little bit dirty.
This place is not a party place! It was perfect for me who was staying for a month to work in Barcelona and to visit around as well.