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?
Force Awakens: I can’t recommend it but if it were already on I wouldn’t turn it off. Pretty much just repeatedly yelling “Hey, remember when you liked Star Wars? This is kinda like that!” But it’s inoffensive as nostalgia bait goes, a fairly well-made toy commercial.
Last Jedi: It has themes and character development and adds depth to the setting. Uniquely among the trilogy, it is an actual movie made by actual adults. There are some pacing issues but it’s pretty solid on balance. Not amazing or anything but I’d say it’s worth the average Star Wars fan’s time.
Rise of Skywalker: People were very upset that Last Jedi had been an actual movie, so this reversed course on that decision and HARD. There is literally nothing there at all behind the jingling of its keys in your face and it jingles them very aggressively.