A good service description explains the specific details about the service and the benefits a customer can expect from your service. All this information is important because it helps customers understand how your offerings are different from the other services on the market.A well-written service description is a form of marketing because it provides the details customers need to understand why they need that service. A good service description explains the specific details about the service and the benefits a customer can expect from your service. All this information is important because it helps customers understand how your offerings are different from the other services on the market. Knowing how to write a service description can help your services stand out.