One difficulty of book adaptations is it will never play out perfectly as it would in each reader's mind. Of course the show won't live up to the masterpiece that is Three Body Problem. That kind of scifi epic only happens ever so often; one's that can be adapted to a show even rarer. However, the show stays true to "show, don't tell", and despite some negligible flawed, eager ensemble acting, as well as a few examples of over-exaggerated editing here and there, it incorporates much of the content from the books while adding much non-cgi visually impressive elements to enrich the shows format as a visual medium. One aspect I especially enjoyed was the main cast. The casting for major characters also reflects the books surprisingly well, and the acting of major characters deserve to be applauded.
Overall, watch this show. It's engaging, aesthetically pleasing, and retains most of Liu Cixin's psychological mind-bending science fiction masterpiece.
