I have a very similar, almost identically shaped, Givi 410st for my Versys 650 Mk2, so assuming wind protection is very similar.
I like the larger Givi over the stock shield except when temps get hot. Basically in the heat, the stock shield is better as it flows more air to keep you cool. Otherwise, especially when it is a bit cool, the Givi is superior. I use both shields, mounting the stock shield in the heat of the summer, and using the larger Givi the rest of the riding season. Don't sell the stock shield when you get the Givi, you will want both.
BTW, heated grips make an even bigger difference in comfort when it gets a bit cool.