Cracked in half on second use.
I had actually read in some of the reviews that this model cracked. However, I assumed (silly me) that this happened out of misuse of the product. I couldn't have been more wrong. I followed every instruction to the letter. The stone never saw water. I gradually increased the oven temp, rather than heating it quickly. The stone cracked in half the second time I used it. I would definitely not buy this again.