My nephew fond that pair, but at the price they were ok but not a steal. Those are the smaller "Amazings", at 4' instead of 5' tall. It seems the black finish is a bit less popular than the wood finish, and the seller doesn't know if they work or not. Apparently the ribbons are fairly easy to fix if there is a problem, but the woofers can be problematic if anything more than foam needs work.
If you are local and can bring a source and amp to check them out, then they can be a very good deal. I think the seller would be willing to negotiate down a bit, since he is out of his league on these (I told him what they were, and gave him some price ranges if they were perfect functionally). If they need work, either cosmetically or functionally, then you want to do it as a labor of love. I won't be up to visit my nephew for at least a month, and he didn't want to take a chance on holding them that long (he's an audio novice, and scrambling for work since he was just laid off).