We just received our replacement. The first time we got the sink it showed up shattered in a bunch  of pieces. Wayfair sent a replacement right away. This time it came intact. 
We used the sink twice and it is already scratched up, and I only washed glasses and cutlery. I don't  know if there is a special cleaner to remove them, but it certainly is not scratch resistance. Otherwise it is a beautiful sink, I just hope it holds up.