Things do not go as planned, of course, and the crew suffers some damage after a meteor shower.
I liked the characters who spanned all the way back to Earth. Everybody had their own motivations which added to the tension of the story. Some of them were just silly but I don't think it took away from the story very much.
Something begins to impact the health of the entire ground crew and the mission is threatened because of it. I found this part of the story very clever and thought it plausible today.
There was a tantalising discovery on one excursion that was left unexplored. It was a nice cliffhanger for the next book.
All in all I found myself transported by the story.
Given today's activity in space I feel more confident than ever that I will live to see humans return to the moon and I hope to see them on Mars too.
Bova's website is here - http://benbova.com/