Hola!
I can recommend Enric as a host. I arrived on one Sunday morning for 1 month stay and there wasn't really big things to complain. He had arranged me space in kitchen and in bathroom. Most important thing for me was the Internet connection which was reliable. The place looks like in the pictures and apartment is located near to metro station and you can take metro to center in 10 mins. The best thing for me was that the apartment wasn't located in a touristic place. The area is more like where normal working people lives and you can see it on shops price tags.
I would come again for long stays.