The First Sacrifice was a loaner from a relative who thought I'd love the setting of the book - Berlin, a city near and dear to my heart. And for me, it was the best part of the book - his descriptions of the city, its layout and familar haunts made me "homesick."
The plot, on the otherhand, left much to be desired. This may be a function of me reading the sequel without having read the previous story - there are allusions to events that happened "earlier", but it didn't seem to make a huge difference to me. Essentially the story deals with the resurgence of a 4th Reich in the newly re-united Germany, with plenty of intrigue, twists, and double-dealing characters. Similar to a Le Carre or Ludlum book, but not nearly as well written or as tight.
The book would make for a decent airplane read, short of that, not recommended.