I've heard it's popular in the Deep South, in ridiculously thick brush.
If you want a perspective of someone who swears by it, here's an article. He says he's experience it is able to go through brush/pine needles/saplings without deflecting as badly as a conical projectile. But that's only in ranges where he can see the deer's eyes, clearly. That's his experience, but I doubt I'll ever be in a situation where I'm comfortable taking a shot with it.
https://www.biggamelogic.com/Article...e-Hunters-Edge