This is frank from Little Tile Inc., a high detail coping and Tile sub-contractor of the last 30+years with over 9,000+ installs. On new construction, I'm the contractor that follows the gunite. What the gunite crew does makes a huge difference to what I do. Are the walls plumb? Was the Gunite shot level( +or- 1/4") . Is the gunite hard or did they use rebound? Arco Gunite is the only Gunite Company that has never failed the above questions. I know when I come on a pool shot by Arco Gunite, my job is made easier because the work was done right, and therefore the quality of what I install is at its' highest level. If you have a pool that needs gunite, call Arco Gunite. They have the science behind the product and can answer all your questions. Tell them Frank at Little Tile Inc. sent you.