First of all, this is not an hotel but a rental apartment in a modernist listed building.
The announce offers more than 30 pictures so you knew how the apartment was like, including that it overlooks an avenue. But once the windows is closed, it's very quite and you cannot hear the noise of the street. No guests has ever complained about that.
About the key, I gave you a set of keys in perfect working condition. When you called me, my husband and I stopped everything to reach you as soon as possible and give you 2 sets of additional keys. I would like to mention that we were outside Barcelona, that it was a public holiday, and that there was a protest march of 1 million people in the center of the city.
I strive to provide personalized service to the guests, precisely to make the difference with the hotel. But yes, I would suggest you to choose the hotel for your next stay, as this better meets your expectations..
I wish you very good day