Luz was a wonderful host! The garden is beautiful and it was a real treat being in this area of Coyoacan. The surrounding area is very, very good. There is a small park across the street and great cafes within few minute walk. Luz was very responsive and always considerant. For example, she was constructing two new rooms and anytime I asked for quiet for work calls etc, she was very accommodating!
A few items that might help you prepare for your stay...
1. If you are a light sleeper, definitely bring ear plugs. One of the nice aspects of Luz's place is running into other guests, however, the walls are thin. I had no problems with ear plugs and used my phone as a noise machine.
2. There are many dogs in this neighborhood, which I found to be a joy. Be aware this does mean quite a bit of barking at times. I got used to it, and if you follow guidelines for #1 with ear plugs you should be good to go.
3. The cave has no windows and I spent most of my day outside and throughout Coyoacan. If you are looking for a quiet place to get work done, I'd probably choose a different room with a window. That being said, the garden (especially in the evening) is a real treat!
Lastly, my stay was almost 60 days, which is on the longer side for this location. I am a minimalist and actually found the small kitchen perfect for basic cooking. I think what Luz mentions in other reviews is very true that your stay is a reflection of your mood. Like any place you have to make compromises but the vibe is extremely welcoming and the artwork is something special. I highly recommend staying!