What are the main differences between a 12 string guitar and a 6 string guitar in terms of sound quality and playability?

A 12-string guitar produces a fuller, richer sound due to its doubled strings, creating a chorus-like effect. This results in a brighter and more resonant tone compared to a 6-string guitar. However, the 12-string guitar can be more challenging to play due to the increased string tension and wider neck, requiring more finger strength and precision.