The device itself is great at self regulating speed, Its solid blades and controller should survive strong wind conditions. I so far have not been able to hear any blade noise compared to a traditional wind turbine. It does best in high wind(It has a low turning resistance thanks to the large bearings but needs good RPM for power output).The unit appears to be powder coated and the blades are a fibreglass reinforced polymer. If some anti-seize/ grease is placed on the bolts for the blades it should last a while without maintenance as the generator part looks to be watertight(Sealed with an o-ring). I will have to test how well the device performed over time but as it nearly winter now is the best time to have it up and running.
Frevin 
