What are some advantages and disadvantages of multistage rockets?

Multistage rockets offer the advantage of increased efficiency, as they discard empty fuel tanks, reducing weight and allowing the remaining stages to accelerate more effectively. This design enables rockets to reach higher altitudes and speeds than single-stage systems. However, a disadvantage is the complexity of construction and operation, as multiple stages require precise separation mechanisms and can increase the risk of failure during flight. Additionally, the need for multiple engines and systems can raise costs and complicate mission planning.