Advantages? I really like this color in 1 inch tiles... PB says they pop off, and you will have more grout.. Which I can see that.. But PB said it's harder to clean, you see more grout, and the tiles themselves tend to pop off quite frequently due to pool movement etc.. PB said the 6 inch tiles bond better to gunite due to the extra surface area, are easier to clean, and have an overall cleaner look..