Lovely place to stay, right in the thick of it, very close to the centre of Barcelona. If you're wondering why it is slightly cheaper than other options, it is likely because of the noise from the road outside, not due to any issue with the apartment itself. The noise itself isn't actually that bad, and it dies down late at night, but if you are a very light sleeper this is worth accounting for. It was comfortable but small for us (a couple and two singles), and could fit 3 couples at a squeeze. The apartment is well kitted out with everything you might need, and the furnishing is pleasant.
All in all, we had a great time, here ticks all the boxes we wanted, and none of the ones we didn't, resulting in a great value stay! Oh, and the wifi is excellent, commercial grade.