Granite is a very hard substance and is not susceptible to scratches. While not ideal to work on because it will dull knife blades, it will take normal wear and tear very well. Granite resists heat too, so its use near a range or cooktop is ideal. When you have to set down a hot pan fast, granite can take the heat without being damaged or weakened. In the bathroom, placing a hair tool on it that is still warm won’t be a problem.
While these counters are very durable, a heavy object dropped on a corner might crack or chip the granite. This isn’t common, but it can happen under the right circumstances.
Granite countertops are ideal for rental units, as it is almost maintenance free and difficult to damage.