Your credit score is the biggest determining factor lenders look at when assessing your risk for any type of loan. This 3-digit number affects the outcome of you getting an auto or home loan; not to mention if you want to refinance your mortgage, manage your debt, and save for the long run. And if you are able to qualify for a loan, your credit score affects the rate you will be offered. Because of this, having a healthy credit score can save you thousand over the years.
If you have a low credit score then credit repair might help.