High quality mixer, much quieter than my previous which however was already quieter than those I had experienced. So please do not worry about the whistling described in some comments, perhaps they never had previous thermostatic mixer. Responsiveness is on top, the heat arrives faster than my previous, buttons turn well and the handling is good even with wet hands. The factory setting of flow limitation is perfect, that will allow to save money. My wife finds it too low but finds the practical release button. I take off a star for roughing user manual, where it is not even that he must put more joints that are not provided ... I also find the water cooler set at less cold than other thermostatic mixing valves that I've experienced. But these are details in view of the quality of the device.
---- SHIFT commentary after several days of use ------------- I judged too quickly, effectively qques after days of use the valve is rather noisy, shame because otherwise it is perfect!
