Imma guy, like it says in my sidebar

I'd guess we all three are. BUT, I'm actually straight

And not the only straight guy here.
I have a wife, and she's used the Akita a few times. Couldn't get it to knot... it's a very wide knot (seriously, 3.5" wide, like it says). If you can take a fist, this is in the same order of difficulty. Otherwise, she liked the longer and thicker shaft. It was... not as good as it could have been, what with missing that last few inches of length. If you like it large, or you just want a challenge you're willing to work up to, go for the Akita.
Also, seriously, your husband COULD give it a try. That... wouldn't even be close to the thing to start off with, but he might enjoy the feeling of something back there. Of course, missing the mental aspect of desire, it wouldn't likely end enjoyably for him, but it's still a thought. Yes, straight guys can use toys, some of us enjoy it.