The blunders and oversights that mar so many OTB games by amateurs are much less frequent in CC so that your level of satisfaction with your games is likely to be much higher. Admittedly, a little patience and organisation is required.
CC is chess played against an invisible opponent over a duration of weeks or months.
It requires some means whereby you send your moves to opponents and in return receive their replies. In the past this usually meant the postal service and postal chess will remain very important for many years yet. However, it is wrong to say that 'postal chess' as a synonym for 'correspondence chess'. The rapid development of e-mail chess is speeding up play and promises to make CC much more rewarding for its players. The broader term 'correspondence Chess' is harder to define, and it is also rather a mouthful.