I bought these Windscreen, because, I wanted to record videos using the BETA without having a pop filter covering half the faces of who I'm recording.
After trying a few microphones for my voice, I really liked the sound of the BETA 57.
And after trying with some guys and girls, I found this microphone to be my favorite for a normal male voice.
Unfortunately some of the guys I recorded, just, really, need a pop filter.
With this windscreen I find that the sound isn't affected all that much, it just gets a little bit darker (and maybe a tiny little bit muffled) which I personally like.
I've also used it on an outside video recording, in a, somewhat windy day, and it did a perfect job, as expected.
Overall, it works just perfectly for my use.
