No joke, I had zero expectations from this and I have come away from it with my jaw on the ground, my eyes wide and tears. This was top shelf Star Wars. I am NOT going to give spoilers, just want to say that if you are a Star Wars fan, drop everything and go and watch this right now.
The way the story interweaved the prequel trilogy and showed the decent of the republic into corruption, Dooku's origin story essentially and served as a companion piece to The Clone Wars series as well and bridged into essentially the start of Rebels...and kind of the Ahsoka novel (again no spoilers here), well let's just say this will be essential viewing on any Star Wars chronology re-watch.
This, legit, is among the best Star Wars ever produced, seriously. Don't take my word for it, go watch it, I will be for the third time back to back to back.