Casa Luz is a great place. Very secure with a doorman and I had my own bedroom and bathroom. Filtered water was available and laundry machines worked as one would hope.
I felt safe walking in the neighborhood and there is a plethora of dining, shopping, and drinking options nearby.
Lucia is an excellent host and very friendly. She wasn't milling around the place 24/7 nor was she completely absent. She was able to give me tips for the city as well as have substantive conversations that I treasured.
I would not hesitate to stay with Lucia at Casa Luz again.