Before I begin reviewing the apartment, I want to mention that we were not fortunate enough to have Katya as our host. She arranged to have a travel company host us and we were less than thrilled with how that turned out. We reached out to Quentin ahead of our arrival and he told us to just let him know when we were getting close to the apartment. We called when we arrived and he was unreachable, even though we had no problems texting or calling him prior. When he finally arrived late (we were waiting for close to an hour and a half), although very nice, he was quite unprepared (needed us to sign papers but didn't even have a pen). Unlike other hosts we had, he did not have a map for us or any recommendations of the neighborhood.
The apartment was fairly clean and the US-EU power adapter was nice but that was about it as far as extras. We ran out of toilet paper on our last day there. The bed was large which I liked but the mattress was very thin and quite uncomfortable. It was uneven and was comparable to a futon mattress. The air conditioner unit in the bedroom was nice and cold but very loud. I like a "white noise" when I sleep so this didn't really bother me. There was only 2 full size towels left which was disappointing as extras for the beach would have been great.
The location is decent and its a quiet street with no street noise considering its on the fourth floor. Barcelona is a more spread out city than some others in my opinion, but luckily it was close to the metro. That was a huge plus. Most of the good bars and restaurants we went to were not really close to the apartment. But again, as long as you take advantage of the metro, the location is not a big deal. I strongly recommend buying the T-10 pass for around 9.80 euros which gives you 10 trips on the subway.
Overall, we were displeased with the check in process and the bed mattress was not comfortable. The location wasn't bad at all and the apartment otherwise was spacious. For the price I expected better, but it's possible that if it wasn't for the botched check-in I would consider staying here again.