This place was great. The space was large, open and airy. There were 3 bedrooms each with 2 single beds, a bedroom with 1 double bed and a large sofa which could sleep an extra person if required. The kitchen was large and fully equipped with the usual cutlery and dishes. There are sooo many bathrooms so that there is never a queue to use one. The whole apartment gets very quick wi-fi; at one stage I was downloading at roughly 40 MB/s. There is a large TV in the living space which has HDMI ports to connect Chromecasts/Firesticks to.
The location was about a 5 minute+ 15 minute train into town. So it was not that central but close enough. There is a reasonably sized supermarket just across the road.
Alex was a lovely host who waited until 2am to check us in. He provided lots of instructions on the apartment but also things in close proximity to the apartment as well as things to see in town.
Please note that there is no air conditioning (there are some fans however - either ceiling or floor), so gets very warm and a little bit stuffy in the summer unless you open all the windows. The photos are also very well taken, and I might argue that the apartment is slightly more outdated and more minimalistic than the photos suggest.
All in all, a great place and I would highly recommend it. Would definitely stay here again if I was in Barcelona with a big group!