In his introduction, Scalzi says this is the piece of writing of which he is most proud. I can't say I've read enough of him to judge accurately whether I agree with him entirely, but I enjoyed this a lot. The Sagan Diary has an almost lyrical semi-poetic quality to it and I thought it fit very well to Jane's character considering what we know from the other books in the series. Well worth experiencing for anyone who has read the first two or three books of Old Man's War.