First I would start with how light and flimsy this tub is and how important it will be to properly.  As long as it’s installed correctly it will be a tub that lasts for many years. No issues with delivery minus having to be here to sign for it. Good instructions as expected from a company like Kohler. Def will want 2 inches of mortar down as this will be the most time consuming part. I went from an old ceramic/porcelain tub to this. [This review was collected as part of a promotion.]