Really liked the first four albums, before the personnel began to change. If you like the lyrics, the main writer, Pete Sinfield, made a solo disc, which is worth seeking out. At least one other of the original band members also made a (forgettable) solo disc. And so it goes with groups.
King Crimson
The only knowledge I had of King Crimson was my first LP bought self titled Bad Company, and reading the bass player Boz came from Crimson. Fast forwarded 50 years and I am now hearing for the first time "in the court of the Crimson King". I know I wouldn't have liked what I love today, when I was 13. Amazing players and composers! Court is not dismissed, please remain seated.