I'm not that familiar with the source material. I read the book and watched the original movie, but that was decades ago. As I recall, I thought the book was cool, but not something that I craved more of.
I watched the movie on HBO Max last night, and my first impression was, this is a movie that needs to be experienced on the big screen. It's world-making and mythology is really spectacular. This is really good sci fi. It's long, but that length allows for a deliberate pace and some time to breath in between action scenes.
I was impressed, and was surprised the movie hasn't gotten more hype.