I had 2 kitchens done in granite by Matrix. One was done beautifully with seams hidden. The second kitchen had a more subtle pattern in the granite, and the join was under the window, so... lots of light. Matrix has a certain joining method that is from Europe, and may be stronger etc., however, I did not like it at all. So, I contacted my sales person, Laura, who then got the Ivo Zanatta, the General Manager involved. He took time out of his busy schedule to personally supervise a site visit, and the replacement of the stone with a flush join as per my request.
I am happy to say that though I expected a tough fight, I got instead awesome customer service, reason and understanding, and fixing of my issue, simply and professionally.
I will actively recommend Matrix Marble, and Laura in sales. Other than their professionalism, Matrix Marble has a much larger selection of stone that I experienced when I was shopping for it.