The sink came with instructions that any defects had to be identified and reported within days of receipt. Since I received it and let it sit in my garage until my plumber was available to install it, I missed the chance to report some apparent surface cracks in the corners. It works and doesn't leak, but I did feel that I was not given the best information in advance about inspecting quality. Its big and I would have needed help to open the box and inspect it so that's why I left it unopened until the plumber arrived a week later to install it.