Depends on the situation. We have a property that has no irrigation clocks. Over 60 homes, each with it's own battery operated valve. It's not our fault that this upscale community doesnt have a clock, but we are chided by the consultant for not managing proper "water balance". That is a tough task during the wet summer we had. We never lost money, but quite often lost points on the inspection.
However, after a year of nudging and educating, the community just signed off on a two-wire timer system. And the consultant help push this along.
So he can help in some ways, but hurt in others. He basically puts on a show once a month, makes you jump through some hoops, and guarantees the client that you are going to be putting in extra time on that property.
Once you get used to doing business with him, you will be fine.