Pros:
The apartment is in a good location, close to metro stations, Sagrada Familia, & restaurants.
The apartment is easily accessed from the ground floor by an elevator or by stairs, if one feels energetic.
The apartment had hot water & air conditioning and was stocked with bed linen, towels, toilet paper & kitchen roll.

Cons:
Regarding the check-in procedure, this was not well-communicated to us. We received instructions by email that we could check-in after 3pm. Two days before our arrival, we reached out by email to the person who was scheduled to greet us (not Joan). We received a terse response that the instructions had already been provided by email; feeling like we had bothered the person, we left it at that. Around 15:00 on the day of our arrival in Barcelona, we were still at the airport and had just collected our bags & started to get our bearings when the greeter contacted us by telephone to tell us that he would meet us at the apartment at 15:30. We balked as this was news to us but he also told us that we would have to wait until 18:00 if we didn’t make it there by 15:30. Thus the check-in process was very inflexible. Our original plan had been to take the metro from airport to the apartment but the greeter advised against this and suggested we take taxi instead, which30+ instead of around €10. Not a good start to our visit to Barcelona.
Regarding the apartment, the photographs do not convey well how small the place is. In particular, the shower is tiny and it’s impossible to turn around without rubbing against the wet shower curtain or the walls. Also, the shower curtain either is far too long for the shower or was mounted too low and so it remains rumpled up at one’s feet when using the shower. Access to the sleeping area from the living area was via a sliding door; it was not possible to squeeze through both sides at the same time