I've had a Hellcat on my SS 750 for several months now and I love it. I didn't want a big, bulky shield and the hellcat fit the bill. It does a great job keeping the wind off of my torso and deflecting it over my helmet. You can see it in my sig pic below.
Mine works very well and looks good on the bike. I rode a rental in November that had the Memphis fats windshield on it and it did block alot more of the wind then mine but I still dont think it looks as good with the full shield. Personal taste issue.
The more I look at the sport type shields the more I like them. I have put off getting a shield because of he buffeting problem with the Shadows. I have ridden a Aero with a Honda shield (big) and a VLX with a Mem Slim. I liked the smaller Slims over the large Honda. The big one felt like my helmet was suspended between 2 tight bungee cords. I like no shield better than either, however, I can see that over a long haul, getting the wind off my chest would be nice.