I remain to be convinced on this. I've ridden in one trad with a windstop plus sidescreens, and it didn't seem any different to mine without windstop. With sidescreens off, I can't imagine how it can make any difference.
Mind you, disagreement rages about the effectiveness of wind wings on the front screen. Some say they work. Some say they don't. In the end you pays yer money I suppose.
If it keeps SWMBO happy then it's money well spent whether it works as a windstop or not
