Yes, better than stock.
I rode with this in both the lower mounting holes and upper ones. In the lower ones it's simply better than stock. Similar airflow but totally smoother. In the upper holes the low position gives you airflow across your lower chin area but is still decently smooth. In the upper position there is vitally no pressure on you at all BUT, interestingly enough, there is increased airflow at your sleeves compared to either position in the lower holes. Great when it's hot but could be a problem when cold. I'm thinking I'll be keeping it in the upper mounting holes but may consider switching to lower holes if really hot. The windshield does vibrate a bit compared to stock but the airflow is again way nicer so I can put up with it. For size reference I'm 5'11" with a 30" inseam riding on the standard seat.