Loved this one. I has planned to read it before the announcement of the movie, and seeing that was going to happen moved it up my list.
I really enjoyed Mark's voice and commentary in the journal logs. The science was able to be followed, at least conceptually. While I was pretty sure he'd make it, I was nervous a few times. And the over all message was uplifting. Looking forward to the movie even more now.
I've only read a few King novels now, but he really likes telling the past by having flashbacks in flashbacks. The events and characters were all a bit too abstract and purposefully mysterious for me. I might continue the series later, but I see no rush.