This is not so much a reader's guide as an insightful companion to Being and Time, which is fine. What isn't so fine, for me, is that it barely touches on temporality (the crux of Division II). Blattner says that most readers don't get past section 66, so that's where he stops. Phooey!
The best advice I got on reading Heidegger was to "follow the phenomenon," and Blattner offers several examples to help the reader do just that. He doesn't follow the structure of B&T precisely, choosing to explain some things in an order different than they occur in B&T, so some independence is expected in the reader. He also interprets a few things that ought to be critically received, such as interpreting anxiety as "depression." This may be a defensible reading, but it certainly isn't the only one (or the best one, in my opinion.) At times the book reads more as a critical essay than an introduction or "guide," which isn't bad, except that it is represented as being just that, a guide. In any case, this isn't Being and Time "Made Simple." There are no Cliff's Notes for Heidegger, kids.
It's a four-star book, but giving up on Division II was a real bummer.