Coming from a kitesurfing background the build quality seems to be very similar to the kites, in the early days of kiting the build quality was average but latter they became rock solid so I guess Airush has rolled over all of the knowledge from manufacturing their kites into manufacturing their wings as they present very similar.
I like the quick inflate and dump valve feature that also comes from the kites as this seems to be about the easiest to use.
The separate main strut clamp feature gives peace of mind as well
I like the scuff pads on both ends of the wings and when I tethered the wing up to a park bench the other day it did swing around a bit and was hitting exactly on these scuff pads
Having tried other wings with boom setups, I prefer the handles that the Freewing comes with / it looks like they have put some thought into the layout and stiffness of these and I can't fault them
The power seems will balanced from low end to top end and I would say my range being 84kg, using an Axis 1010 front wing the range would be around 16 - 25knts
Well Priced / compared to other brands and especially compared to kites!
Great to have the windows for the extra vision, and i am glad they are included
You do have to be careful initially rolling it up in the bag not to crease the windows, but when you get your technique and pre fold by a third it is all good.
Got mine from Stand-up surf shop in North Fremantle and was really happy with their advice & service.