The good:
It was very close to the subway station and the Gaudi palace, less than a 2km walk from a lot of interesting stuff. The check in was smooth and the company's representative was very nice.
The bad:
Keep an eye on the price as some of the taxes and fees don't show up until checkout making AirB&Bs not as good of a deal. Some of the city's homeless camp on the street nearby, not the Management's fault. I was woken one night by someone pounding inside the elevator they were trapped in for 40 minutes. The mattress is the most uncomfortable I've ever slept on. The bedroom curtains were so dusty I didn't want to touch them.
The review might sound very negative but with just a little more care the place could be very nice. The apartment is in good shape, has a nice little kitchen and washer. I hope this review is helpful, my review is honest and not meant to hurt.