Whether your credit score will enhance or erode your credibility depends on the score you have. If your credit score is above 700, you are considered a credit worthy individual. If your credit score is below 700, it will be difficult for you to enjoy lower interest rates. The more your score is below 700 the tougher it will be to enjoy lower interest rates. The FICO score is the generally accepted credit score and it fluctuates between 300 and 850. Each of the three major credit bureaus, Equifax, Experian, and Trans Union, use its own adaptation of the FICO scoring model.