I don't have any of the rotating Jopen vibrators because they look like they wouldn't fit my anatomy. If someone ever wants to give me one to test, I'd take one, but I'm hesitant to drop the money on something I'm pretty sure won't fit my body.
I do, however, own almost all of the other Jopen vibrators. They are wonderful products and by far my favorite vibrators. If the rotating rabbits are the same quality as the others (and I assume they are), the larger Jopen vibes are probably worth the money.
The only issue I would see would be spending all this money and it not fitting your anatomy. That's the only reason I don't have any of the rotating line.