I've put about 200 miles on with this windshield and I'm really starting to like it. In the up position, it is tall enough for me to see through and not have the top directly in my line of site, like with my stock shield. I'm 6'2". It blocks the wind well and creates a nice pocket of air at highway speed.
In the down postion, it allows air to hit my helmet to keep it cool. Also, I was riding in some heavy rain and the wind coming up over the windshield hit my helmet in such a way that it blasted the raindrops off of my face shield so I could see clearly.
The only thing I'm not pleased with is that it had some micro scratches on it coming right out of the box. I've cleared them up some with light buffing.