Let me know if it really helps and is worth the time and money you would think as much as they cost we would not have to worry about anything but where we are going riding next
I believe it helped . Rode Northern MN this last week. Temps in the mid 80s. When going slow (30 and under) had the windshield flipped all the way open. There was noticeable heat by your feet with the fan off, turn the fan on and you could feel the cool air being pulled in around your lower legs. When going faster (45 and over) with the windshield cracked open and fan on never got uncomfortable. Wife rode in the middle seat and said it was a big improvement.
At one point we had it filled up with 5 people and I rode in the back. I do not really know if the fan blowing made it hotter in the back seat or not as I have not rode back there much. I can say it was warmer than the front but not uncomfortable.
All in all I think it is a good mod, but mind you the temps were only in the mid 80s. I'm going to look into adding heat shielding for the back seating area also. Maybe even more fans inside the cabin that blow air on your upper body when going really slow.
Wished I had the reverse switch hooked up, one night we went out for a short ride and it was about 55 degrees, could have tested to see how well it would have worked as a heater.