Looks very good Ducker, I was really impressed with this floor when I laid it, it is beautiful and yes you are correct it is porcelain instead of ceramic. Porcelain is gray in the center and ceramic is red if I am correct. Think we put a light gray grout in the one we laid and man it made it pop. I finally started makin my rips with a masonry blade on a small 4 and half inch grinder because it was so long it was hard to get in my wet saw.