The blades alone are 600mm x 900mm. Not exactly discrete!

The vertical axis dimensions are 600 mm. That's not bad compared to propeller type generators,
Not sure if the horizontal axis at 900 is much bigger than prop type gennys with directional vane/tails.
Unsightly? Yes, but they all are aren't they.
Here is a site with a variety of prop type generators, Notice the prices and also the fact that no dimensions are given.
www.emarineinc.com/categories/Rutland-914i-Marine-Wind-Turbine

Just like the one I posted for the approach and price,
Gary

garymalmgren said..
Cheap too.
www.banggood.com/100W-to-400W-12-24V-Vertical-Axis-Wind-Turbine-Generator-VAWT-Boat-Garden-with-Controller-p-1259221.html?currency=USD&value_ids[0]=9554&value_ids[1]=28371&utm_source=facebook&utm_medium=cpc_elc3&utm_content=may&utm_ho=18&utm_campaign=elc2-dpt-mix2-34-ele-list-det&cur_warehouse=CN

did you end up exploring this further? Curious if you did

Complete junk! Hard to think of a design that could be more inefficient. Might be able to use it as a giant anemometer though!