50 points is too big a spread to be useful. Most people will be between low 600s and low 700s. A 50 point jump in that range is monumental, at the right spots it could add 1.5% to your mortgage rate so I think this isn't really that useful a tool. Still it is good for those that don't know what makes up your credit score so you can make efforts here and there to improve a score so you can refinance for a better loan rate or buy the car at a reasonable rate if you didn't get the premium rate to start with.