We had the humidifier for a few weeks. It works great, but you have to be extra careful when screwing off the valve to fill the humidifier with water. The screw threads on the humidifier portion became weak and  broke off when trying to screw on the valve. It is small and if you don't screw it right, it can break over time with the water and stress on that area. So we now have to get a new humidifier tub replacement if possible.