Consumers are constantly in need of services of all different kinds. By "service", I mean it in the traditional sense: "the performance of labor for the benefit of another, or at another's command." (A tip of the hat to Webster1913.)
Now, no matter where a consumer goes, there is a list of three choices regarding the service that will be performed:
From this list, the consumer is allowed two choices. The choices made will accurately tell the consumer what the resulting service will be like. How?
The remaining item on the list is exactly what the end result won't be.
For example: A person gets into a minor car accident, and their car needs body work. Here comes the list.
Cheap work + Fast work != Good work
Good work + Cheap work != Fast work
Fast work + Good work != Cheap work
Get it? Good. Now you can make wise decisions on what kind of service you want, the quality of the service, how long it will take, and how much it will cost.
Remember this rule. It applies anywhere.