4k set is a two-disc set containing a UHD disc and a regular Blu-Ray disc. But, with this release, the UHD disc has both the movie and all the extras. Those include about an hour's worth of making-of and behind-the-scenes featurettes, which are akin to what was put out for Chapters 1 and 2, with some focusing a bit less on Keanu because of the ever-expanding cast, including Hallie Berry, who really lobbied to be in the movie. Then there are also featurettes on the video game that was put out, and two trailers for the movie. Again, a great amount of material, especially these days when movies and shows are being released on physical media is going the way of the dodo bird, and when they are put out on disc, are bare-bones with little to no extras.
Chances are, if you liked the prior two movies, especially if your main reason for doing so is the action scenes, then you will like this. They are expanding the story in this movie and making it far less simple and straightforward, which was one of the things I liked about the prior movies, especially the first one. That said, it is still a fun but very violent action movie. And, John is finally not indestructible in this movie. Even so, what he manages to survive would kill all ordinary people and most "superhumans, " so you need to continue suspending your disbelief big time.