The new crew in Before Dishonor aren't characters so much as cheap tension generators. They have no depth, and what little characterization there is clashes badly with what previous books had established.
Do you mean that specifically in
Before Dishonor, the characters weren't, well,
characters? If so, I agree with you, which is one of my problems with the book (which, like many here, I didn't hate - I just didn't
like it either); Leybenzon, Kodohata,
et. al., were fully developed in previous books, but were little more than cardboard cut-outs in
Before Dishonor, and such damage was done to Leybenzon and Kadohata that they pretty much had to be discarded after this book.
I think more people were put off because they thought David had a tendency to use humor that wasn't particularly funny.
That was my problem as well. The jokes were heavy-handed and ill-timed, and at times almost made the book seem like a parody.
I still contend it's the best TNG-relaunch book before Destiny, as long as you look at it as a standalone story. Most of the problems arise because of inconsistent characterization with prior novels, or repetitiveness with prior & later novels, etc. On its own, though, I genuinely think all the characterizations work (except for possibly Worf), especially Picard who I think is hilarious and a bit darker, which is exactly how I imagined him after Data's death. They may not be the same characters we see before and after, and that's worthy of criticism, but on its own I really think the book is pretty fantastic.
While I disagree with you on the whole (I think it's
far from the best TNG-relaunch book--for me, that's either
Q & A or
Greater Than The Sum), I do agree with some of your other points (especially concerning Picard's darker characterisation), and you're right on the ball about Worf being
seriously off - it's as though none of Worf's character evolution since
TNG has happened at all. And Spock is absolutely spot on; I think Peter David has consistently been one of the best writers at capturing the post-
TMP, post-resurrection Spock, with his slightly more relaxed attitude.