The apt: Clean, comfortable, central and a/c works great. Everything you need right outside the door. Living necessities you might need provided (iron, washer/dryer, extra blankets, cookware). It's updated but has some small issues like the outside blind broke with one use, wobbly dinner bar, small things.
The communication process wasn't easy, response time isn't quick even on arrival day. Never spoke with Mireia and Maria but multiple people which kind of threw us off. Ad says they can arrange a shuttle but its €50 for two people (take the aerobus & metro). They told us to call Karen upon arrival who was kind however she spoke zero English (luckily I somehow remembered those high school Spanish classes). I tried calling the contact number of the ad (supposedly Mireia and Maria's) and someone picked up but then hung up on me. Pretty frustrating check in situation (esp. when using a payphone).
I'd recommend it for the sake of the apartment and price, just have a cellphone and speak Catalan or Spanish.