Bottom line up front: clean airbnb with great location but the host is disgruntled and you should explore other options before this room.
This airbnb location is excellent with a clean room, we also were able to dropbags early which we were extremely grateful for, the location can be a little confusing to find but after talking to locals were able to figure it out. Our main issues come from the Host himself and his belittling of my girlfriend on the first day as out of the two of us she spoke Spanish the best.
When asking about the portable air conditioner from HIS airbnb listing as the room was hot and we didn't feel comfortable with leaving the balcony doors open, he belittled her because I stepped back into the room less then a minute after dropping bags to grab a jacket as it was a chilly day. Earlier before this he belittled her and cutting her off mid-sentence numerous times has we tried to apologized about making him wait and eating lunch late to hand us over the keys, as we tried to explain we had phone connection issues and couldn't find our way back or see messages. Later in the evening we could hear him clearly gossiping of us later in the evening to his friends from the otherside of the apartment.
We immediately had the feeling of "walking on egg-shells" and concern for safety while staying with him. Understand he is roughly 185 - 188 cm tall and around 97 kg, so he isn't a small man and would use his size and loudness to intimated. Out of safety for the hostile attitude we received earlier in the day and not knowing this man while in a foreign country, we found ourselves barricading the door each night with our bags (the room does not have any locks or ways to lock the room). Due to the short stay and being in a unknown area we sadly couldn't find another place to stay.
He started our trip very shaky but honestly staying in numerous airbnbs and hostels throughout our stays in Europe, there are kind and welcoming Spaniards and you can find better options then Guss's place.