Beyond the Dream is all very self-congratulatory but doesn't do a great job of explaining the scale of his unique achievements or putting them into a wider baseball context.
If you're not a baseball fan or already knowledgable about the sport then I imagine you'll be bored out of your skull - it's largely just a collection of old legends and managers saying they respect him which you'd imagine would be a given.
Save yourself an hour or two and watch some Youtube videos about Shohei and/ or read his Wikipedia, you'll get a lot more insight from there.
Also, there are a lot of subtitles so it's not one to put on late at night!
