"And let him who is in the field not go back to get his clothes." -- Matthew 24:18 (NKJV)
I admire three things about the Jack Reacher novels:
1. Reacher's lifestyle is so unusual that it opens my mind to seeing new possibilities. 2. Reacher is put into impossible-seeming situations from which he easily escapes, without that result seeming obvious in advance. 3. The books open with such improbable and fascinating circumstances that you can't help but marvel at the imagination that led to creating them.
Never Go Back is pretty good in terms of points one and three, but definitely lacks the gusto we've grown to love in terms of how challenging the situations are. For me, that made the book's ending (which I didn't like) a little too predictable ... causing the book to lack a lot of the suspense that grips the best books in the series.
Definitely read this book, but you shouldn't expect it to be your favorite in the series. If you mostly read the books for the impossible-seeming situations, you might even rate this book below average.