I finished this recently and could not agree more. I've just started the 1980's miniseries via Netflix (no streaming, unfortunately) - I'm only two hours in, but so far it is a great retelling.
One of my top five books. I've read it so many times that the binding broke and the book is now in three pieces. I'm amazed that James Clavell managed to capture the culture so well.
I've read only Noble House. It's quite rich on the culture--maybe not so much as Shogun--and captures the setting quite well, but I didn't find it nearly as entrancing as Shogun.
Clavell's whole Asian Saga (Shogun, Tai-Pan, Gai-Jin, King Rat, Noble House, and Whirlwind) is amazing. My favorite is Tai-Pan - the book had a tremendous impact on me, and I'd imagine it would appeal to every real entrepreneur. The underlying themes are freedom, individualism, honor, risk-taking, and ultimately, building something and defending it.
I read that about 10 years ago. I need to revisit it again since I don't think I have ever managed to finish it without long periods of rest inbetween parts.
Really great historical fiction about 16th century Japan. Quickest 1100 pages I've ever read.