Read about this Phoenix homeowner’s experience with California Buffalograss here! She’s only watering her lawn once every 4 days for 15 minutes, in their triple digit weather!
http://lazygardens.blogspot.com/search/label/buffalo%20grass
“I am hard to impress, but … I’m impressed…3 to 4 months establishing the plugs is a minor investment of time compared to the saving water and mowing time I’m going to be enjoying next year.”
californiabuffalograssblog.com 
This is REAL triple digit weather … over 110 for most of the month. The lawn gets noticeably stressed by the last day before watering – slightly blue and footprints don’t spring back.
But I’m using 60% of the water it would take for an established Bermuda lawn, and mowing less than once a week. Unlike Bermuda, that turns scraggly when underwatered, the Buffalo grass just slows down it’s growth but stays reasonably green.
Thanks for the comment and for keeping such a detailed record on your experience! It really is insightful for others 🙂