There are'nt really many drawbacks to Corian. One thing is a JayJ said was seams. But, your certified Corain installer does it every day and tthe only problems are usaually poor installation. Corain has a 10 yeat warranty. Heat is another problem. If you set a pot down on it one of two things will happen. One, you will scorch the surface. It may or may not be repairable it depends on the extent of the burn. Secondly, the heat will travel to a weak point and possibly fracture at the weak point. Other than that it is a great product. Bacteria can not grow on the surface. Most minor imperfections can be repaired. DO NOT use the scrap your installer leaves you for a cutting board. It is not good for your cutlery. You want to use this for a future repair or remodel. Most installers price these jobs by the linear foot. You might only wind up with a small scrap depending on your layout(Usually a sink cutout.