The "Acropolis," as it is known, is along a very steep hill in the Lesseps district near Parc Guell. The area outside the house is oddly sprinkled with anti-tourist graffiti and stickers -- I'm guessing the locals recognize the Acropolis as a guest house. The house itself seems like a work in progress. Travelers should know there is no AC here, which means in the summer the window needs to be open, and the noise and heat made it difficult to get much sleep.
Dulce was very friendly and had good recommendations and advice. She even cut some watermelon for us on the night of our arrival, although we did not see her after this. We had only a few brief interactions with the homeowner, Yata, who seems friendly enough.
The house is pretty easily accessible by the green L3 metro line, though as I mentioned, there is a steep climb up to reach the house that left us twentysomethings winded each time.
I'm not sure I would stay here again, especially in the summer, as the heat was too much too deal with.