Friday turned into Saturday, then turned into Sunday, and eventually into Tuesday but I finally saw Rogue One. My first rendezvous with the Star Wars franchise, well, excluding the one time I did not pay attention to episode four and those Family Guy versions.
My mission, which I didn't get to choose to accept, was to watch Rogue One and see (1) does it stand alone without seeing the rest of the franchise first and (2) if it is a good movie absent a bias towards the films. The answers, for the most part, are yes.
Most of Rogue One explains itself.