Note: I haven't read the books
I thought the show had a great premise but fell a bit short in the acting department for a few characters. I really loved the character of Ye Wenjie and I felt the actress nailed it. The show failed to capture the dread of being powerless against the unknown. The cinematography was superb, the relationships between the friends could have been fleshed out a little more. Loved Will's character but Jin was a bit bland to me.
Overall a enjoyable sci fi flick with a ending that makes you curious to know more.