The casita was a great choice. We came to Phoenix for a baseball game. Chase Field--and all of downtown--were in walking distance. The house is in a neighborhood, so you get both a residential and city experience in one stay.
The hosts are in the process of building another straw bale house on the property, and were gracious in giving us a tour and tutorial. It's a very interesting construction method which regulates the temperature and sound in the house.
Our hosts were welcoming, friendly, available and helpful, but not intrusive. The casita is a separate building, so it's very private. It felt authentically Arizona. I would definitely stay here again.