Can't comment on the functionality of either item. However, I have a polycarbonate back cover with a leather skin from Bear Motion. It was very difficult to get the iPad 2 to fit, but once on it is both attractive and very protective.
I mention it because I purchased it at an introductory price of $3. I couldn't get the case to fit and wrote a negative review on Amazon. Within hours I was contacted by Bear Motion who offered to send me another case. When that one had the same problem (at least for me), they sent me a third case after testing it to be sure that particular example could be fitted to an iPad 2. None of this cost me a cent.
I was perfectly willing to let it go. After all, it was just $3. But the folks at Bear Motion wouldn't hear of it. They kept at it until I was completely satisfied. I've literally never had a company so devoted to my meeting my needs, especially for such a paltry purchase.
Thus, I would not hesitate to recommend their products. If you're not happy, they'll make you happy. And as you probably have seen by the reviews on Amazon, those who've bought the case you're considering are happy with their purchase.