Gonzo
You note that one of the objections to this type of technology is the erosion of controller skills.
I recently noted a flury of posts on our facility bulletin board about scanning - how to do it and how to keep scanning in various traffic situations.
I couldn't help but recall that when I began controlling, we pushed little plastic "shrimp boats" along over the target blips and scanning was never an issue - you kept your eyes and hands moving at all times and that kept your attention moving.
It seems the more we develop technology in this business, the more individual controller skills fall by the wayside.