I'm on the fence about Salvations Reach. On the one hand, I did enjoy most of the book (especially the bit with Merrt and the white scar). However, the book didn't really deliver on what it said in the blurb. For one thing, it says that the Ghosts "may have been in reserve for so long they've lost their edge." There is almost no evidence of that whatsoever. The one person who does break down in a fight is the one guy who I think is universally hated by all GG readers. Also, it says that the mission is regarded as a suicide mission, but it just seems like any other mission the Ghosts have been on. Yes, some characters we know die, and the mission isn't easy for them, but again that's just like every other mission. There's nothing that really makes it stand out as dangerous or impossible.
tl:dr I liked the book, but it didn't really deliver on what it said it was going to.