I have the all brass version of that head. It works fine. It is the typical Silca style friction fit onto presta style stems. The forward portion unscrews for use on Schrader stems. It does screw securely onto a Schrader stem. A little air bleeds out when you remove it, but I don't see how you can avoid that with the screw on style.
I've had no trouble with that style head on both styles of valve stems. The rubber washer for the presta valves will wear out eventually, it requires periodic replacement.