I've been using the Tulsa Tall Windshield on my Interstate since I got it maybe five years ago, and I have absolutely no complaints. It's tall enough that I need to look through it, rather than over, because I'm only 5'6". I get none of the buffeting from the wind on my helmet that I get with my son's Goldwing, which makes for a less fatiguing ride at long distances. I guess I did have one time when it was raining on a muddy road and I had trouble seeing and had to look around it for a little bit, but I didn't think it was a big deal. Hope it helps.
Same here on all the above, except kinda of thinking about getting another with the wing vent in the windshield for really hot Florida days. I do prefer to look through rather than over, due to being hit with various stuff over the years...