Yeah those look super comfortable and stretchy, but that waistband kills it for me.
When I considered these recently, I found a review by Jake Orion, who is fucking huge even when soft, and you can see that his junk hangs freely in them, but with a waistband like that, I'll stick to microfiber boxers for when the occasion calls for putting some underwear on.
youtube.com/watch?v=xQQlWjM9bII (<-removed the "www " so it wouldn't embed the video here)