Seveneves is one of my favorites, even though it gets mixed reactions from a lot of others who've read titles like Anathem. I can't compare it to Anathem (the only other Stephenson book I've read so far is Cryptonomicon; looking to change that), but I can say I love the technical depth. Perhaps it's because it helps me suspend disbelief much more easily, though Bill's point that "if you’re the sort of reader who does…
For me that last third part feels... rushed? I can not really explain it but the first two thirds of the book were awesome and then when you reach the last part you feel like Stephenson had to meed a deadline for printing and that part is just tacked onto the main story. It is way too short for its content, I feel like Stephenson could spend a good two or three books exploring this new story arc.