We loved the location of the apartment. The Gracia neighborhood felt very authentic and not touristy. There are tons of shops and restaurants within walking distance. The check-in process was smooth, the building has an elevator which is really convenient and you are given an access card for keyless entry to the apartment which is great. However, we were not given the same apartment shown in the pictures. The apartment we were given is very similar and even the decor is identical, but the bathroom portrayed in the pictures did not match the smaller bathroom we were given as ours had a much smaller shower. I reached out to the hosts to point this out and we were given a refund, but I would have liked to have been switched to the apartment that we were expecting.
There is central A/C, however the temperature never dropped below 26 degrees Celsius during our stay even after setting it to the lowest setting of 19 C. This temperature isn't bad for just hanging out around the apartment but at night it was not comfortable especially if you use the thick bed sheets provided to sleep. We sweat quite a lot which did not make for a pleasant experience.
Also, the shower had amazing water pressure, however we couldn't enjoy it because the drain would flood within seconds if you opened the faucet all the way. Because of this we had to keep the faucet barely open with very light water pressure otherwise the drain would start to back up and the floor of the shower would get flooded.