Thank you all for the nice comments. Yes, pclausen is right, the grapple is a Frontier. I looked at the Everything Attachments grapple online and it also looks fantastic! The JD dealership let me demo the machine before I bought and let me try this Frontier grapple...it was brand new and I beat it up a little, so I felt guilty not buying the one they let me demo.
One big difference between the ET and the Frontier grapple is that the ET grapple has two hydraulic cylinders that control two "claws" (not sure what to call them). This is great for asymmetrical loads, but I have a feeling it may be a little less adept at picking up big rocks. In any case, I'm pretty happy with the Frontier so far.