More on VAWTs, I might have been a little hasty in my assessment of the vertical wind turbine

More on VAWTs, I might have been a little hasty in my assessment of the vertical wind turbine.
Not all is as it seems with the VAWTs as we can see. There is a great amount of hyperbole when it comes to the vertical wind turbine. With great claims of fantastic efficiency and capabilities its no wonder that these little beauty's are so sought after. And lets be honest these are really nice looking and interesting to look at. And of course these kill less birds right?