I've never written a negative review before, but felt the need to share my experience at this place. The experience was especially frustrating as I've recently started hosting myself and feel a certain level of obligation to bend over backwards to maximize guests comfort at my place.
The main problem revolved around a broken air conditioning unit in the bedrooms. We were there in July, which meant Barcelona was very hot. The apartment is in the upper corner of the building and heat from the exterior of the building gets transferred to the bedrooms in the afternoon/evening.
We checked in on a Saturday afternoon and I didn't realize there was a problem until early evening (when we tried to go to bed). The bedrooms were 28 degrees celsius (which is over 80 degrees fahrenheit), making it very difficult to get to sleep. I messaged the host around 9pm that evening, realizing they probably wouldn't get back to me until the following day.
I waited until 3pm the following day and still hadn't heard from the host. I then messaged Airbnb support (as I was worried about a second night of no sleep). The host called me within 90 seconds of my calling Airbnb support. He explained that it was already 'late' on Sunday (it was just after 3pm) and they wouldn't be able to do anything until the following day.
Earlier that same day (Sunday) I was walking in the neighborhood and found a hardware store that was selling portable AC units. The host refused to purchase one for us. In hindsight, I wish I had just bought one myself.
The following day the host arrived with four basic fans(not AC units). I explained that this wouldn't help as the air in the bedrooms was being heated by the exterior of the building. The fans would only move the hot air around and not cool the air in the bedrooms.
The host became somewhat agitated and told me that if I didn't like the fans, I could leave their apartment and stay somewhere else (note - they didn't offer a refund, they just told me that I could leave). We were traveling with my three kids and my mother in law, finding a new place with such short notice wasn't feasible (not to mention the fact that I had already paid for a week at this place).
The next few days the host had multiple repair people take a look at the broken air conditioner (note - they never gave notice, they just entered the unit). None of the repair people actually did any work. While the host wouldn't give me an update on the expected date of repair, I suspect they were trying to find the cheapest repair option possible. Needless to say, our comfort wasn't a very high priority for the host.
We finally were able to circulate some cooler air into the bedrooms using the wall AC unit in the living room and the fans. But, the temperate in the bedrooms never got below 24 degrees celsius (75 degrees fahrenheit), which made sleeping very difficult.
The apartment is nice and the location is amazing. As long as everything is working properly in the apartment, you should have a nice stay. If something goes wrong, don't expect any support from the host. Their priority is maximizing profits from this unit, guest comfort doesn't seem to be important.