All the bad reviews are coming from Jar Jar Binks fans

Rating: 9/10 (21 December 2019)

Here's how I would rank this film among the other 9:
V. Empire Strikes Back
IV. A New Hope
IX. The Rise of Skywalker
VI. Return of the Jedi
VIII. The Force Awakens
III. Revenge of the Sith
VII. The Last Jedi
II. Attack of the Clones
I. The Phantom Menace
All of the people rating this movie less than 6 are also the people who wanted the entire movie to take place in Jar Jar Binks's home town. They are indignant that Jar Jar and his descendants didn't play a more prominent role in these films. If you are one of those people, it is highly likely that you too will be disappointed.
HOWEVER, if you are able to go to the theater without expecting the film to pull your own head out of your back, then you will probably enjoy this movie. From the beginning, the movie was fun and exciting (again, as compared to the other Star Wars movies). As the movie progressed, I felt invested in the characters. I thought the narrative turns where very consistent with the Star Wars universe. There was an appropriate amount of fluff and humor (again, if you are hoping for Jar jar jokes, you'll feel let down).
Finally, I thought this film attempted to explore a few themes that are worthy of discussion (and appropriate to the Star Wars narrative). Themes like, an individual's struggle with his or her own conflicting natures; what does it look like for the younger generation to continue a tradition or identity of an older generation; how do we ethically engage an enemy while keeping our own rage and violence in check. Whether the movie does a good job with theses themes in the narrative is debatable, but at least they are giving it an effort.
My suggestion is to have no expectations and to sit back and let the movie take you where it wants to take you.