Okay, I would definitely base my opinion on the Google / Rotten Tomato reviews already collected - that is a better representation of the quality of this film. I was going to watch this movie regardless of reviews simply because I can't get enough period pieces and, well, Adam Driver - say no more.
I thoroughly enjoyed this film - I'm not sure if the Amazon reviewers so far just don't appreciate the genre and were drawn because of the all-star cast, but hey, period pieces aren't to everyone's taste. But please don't let that dissuade you from enjoying this film if you do. They do a great perspective shift throughout the movie - where even though you're getting a recounting of the events from Jean, Jacques, and Marguerite they're all very engaging and not at all repetitive.
I really liked the environment the crew created - the fight scenes were not at all drawn out and were engaging, in addition, to contributing to solid character development. And oh my gosh, I did not anticipate how much I would enjoy Ben Affleck in this! I adore the blonde hair, haha, so well cast/portrayed. And Matt Damon - very versatile role throughout the film; again as the perspectives change - so does he. He did very well in embodying all those representations. I really enjoyed Jodie Comer (Marguerite) in The White Princess - and she did not disappoint here either. Very well acted - and I empathized with her character.
And the ending - it was great! Definitely worth your time guys! I enjoyed this film while soaking with a Lush bath bomb, a glass of wine, and candlelight - it was marvelous! For your endeavor, I would recommend dropping the popcorn and going with a meat, cheese, and cracker tray ;) really sets the mood lol.