If they have gotten their act together then it's a good bargain, if not you will have a headache. I bought one a number of years ago, it was an amazing stone and I wore it out. I bought one two years ago, and it was gritty and rough. I lapped it down over a 1/4 inch on the 4k side, it never got past the grit so I exchanged it for another. (Luckily bought it locally) My new one had the same darn problem, so I returned it and bought a Chosera and and Naniwa to replace it.
From the above post it sounds as if they have worked the kinks out, but I got burned twice so they lost me! Let us know what you end up with