As I can in 2026 gorge myself on "mysterious things doing mysterious tasks mysteriously", now an entire sub-genre of its own, I'm pretty sure the impact if I read it for the first time today would be somewhat muted by comparison.
I am also reminded of the J. J. Abrams "mystery box storytelling" technique. Rendevous with Rama was perhaps one of my first encounters with the technique, so I have fond memories of it. But in 2026 I find myself tired of the "woo woo there's a mystery and we're not going to tell you what it is" because in the end, all mystery boxes are fundamentally the same, and I've seen enough of the mystery box. It has its place in history but if a random person who has never read sci-fi of this era wanted a recommendation to start with, this would be way, way down on my list, unless you explicitly want to read things significant to the genre.
But as I've tried to make clear by my repeated references to the present time, that's my 2026 review. For the time it was a fine book.
It’s like someone telling you a story and you ask, “and then what happened,” and they reply, “nothing; that’s the end of the story.” No one appreciates that, but people rave about authors who leave “open-ended interpretations!”
I tried to rationalise those humans were from a world very different from my own, but not even that worked. It was like watching a reality show with uninteresting people.