The Judicial branch of government depicts the meaning of laws and applies them to the states. It also resolves disputes and has the power to change laws through judicial review. If the review deems the laws incompatible they may annul them. In the United States, this branch oversees the court system. The Supreme Court is the highest court of America and is the head of the Judicial Branch. This court rules whether or not something constitutional. The judges are nominated by the President and approved by the Senate. There are no term limits and no other court can overrule them.
A disadvantage would be that judges are appointed and not elected which makes it more difficult to get rid of an undesirable judge. Another disadvantage