Guillermo was one of the kindest, most accommodating AirBnB hosts I've stayed with. The space itself is so nice and comfortable - I would know, as I ended up falling ill and had to spend a lot of time there. I felt very safe, and Guillermo had lots of suggestions. The space is on the 3rd floor, on the roof. You do have to walk in through the main home's hallway and kitchen, but it isn't weird at all. The balcony is great for drinking morning coffee. The location is also excellent and very walkable.