Steve
Sanctuary/McDowell Mountain was a reasonably good public course. The improvements sound like they will add some length to the back nine and improve aesthetics and pace of play on the rest of the course. The views of the mountains are good there but there are power lines bordering the course. It's tucked back into a residential community, so set your GPS to find it.
What is interesting to me is the membership model that Mickelson/Loy is putting together. They are linking a number of courses under one umbrella. The members will get access to "a few" tee times per hour. Will this work at a $5k down and $600 monthly dues? The positives are that four of the courses (Rim, Chaparral Pines, Quintero, Blackstone) used to be high-price private clubs. Rim and Quintero are the best architecturally of the group. The others are nice, friendly courses but are not "must-see" for a short golf trip to Scottsdale. The negative is that a member would have to drive a minimum of 45 to 50 minutes to play one of the other courses unless they lived over on the west side. I hope that it works for them.
Dave