It`s interesting tecnology. I had some idea to buy one system like that (very small of course), but i did not have enough money. In the place where I live, in spring and autumn there is quite a good wind. But in summer the wind is very unstable and can be completely calm. Whatever the case, maybe in the distant future I'll get a small windmill to get electricity to light my sheds.
At a "residential" level, wind is a good supplemental source, but unless you have wind every single day constantly, you need other producers. Solar+wind is a good option given enough batteries to store with. People fortunate enough to have a flowing source of water can add small water wheel generators to that too.
Best he not be wearing dentures
