The original and prequel trilogies are worthwhile viewing. The sequel trilogy, however, presents a different case. While George Lucas provided story treatments during the 2012 sale, these were ultimately discarded. The sequels also marked the end of the Expanded Universe, removed from canon to allow creative freedom for filmmakers. Given that the stories deviate significantly from Lucas’s original vision, is there really a compelling reason to watch them?
Biggest problem is that they butchered Luke character beyond repair in TLJ. Luke is destiny to fail to understand why he won against the emperor and he can’t understand that the message of no attachments from the prequel era jedi is totally wrong and bullshit. In the Expanded Universe that Disney killed Luke succeed on that and the new jedis understand the force better, in the Disney canon the character that probably will do that is Rey. There’s absolute nothing that Filoni and the others creators can do to fix this.