The good:
The apartment was in a good location - in central Chueca, close to many restaurants and nightlife. The apartment was a good size - even bigger than the photos. Wifi was good, as was the water pressure in the shower.
Random notes:
The street the apartment is on is definitely one worked by prostitutes. They are outside the apartment day and night. But, they don't bother anyone (or even talk to you) so it was not an issue for me.
The apartment, while having huge windows, and lots of natural light, is basically on the ground level, so having the windows open (although there are bars), doesn't feel very secure as people can reach in. Again, was not a problem for me, but might be for other people.
The bad:
The lock stopped working on the door one day when I was trying to get in. The property manager eventually came by, called a locksmith (his friend), who then said I had tried to force the lock and that is why it stopped working. Then he said it would be 75 euro (to be paid in cash directly to him) to fix it.
First of all, there was no way to 'force the lock'. It is a regular tumble lock where you insert a key and the lock turns. Nothing complicated about it at all. For an afternoon, I actually had a friend climb through the second story veranda and gain entrance to the apartment via a courtyard (I had left a window in the inside of the apartment open). To say I was somehow trying to force the lock to get inside the apartment is asinine. I tried the lock a few times, and then realized we could get in through the courtyard.
For them to say I somehow damaged the door is such total nonsense that it boggles my mind. I would have simply vacated the apartment, and looked for an alternate Airbnb, but there was a major festival going on in Chueca that week so it would have been almost impossible to find something. I told them to take the money from the AirBNB security deposit (per Airbnb's terms) and they said no, it had to be paid in cash, on the spot.
Because of this, I cannot give the apartment a higher score. If your property has some kind of shortcoming, the onus is on the property manager to fix it and not try to pass the charge on to the customer. I cannot recommend staying at this apartment because of this.