This novel is apparently a bastardized child with many rewrites and many revisions...but I've always found it immensely satisfying, and the multiple cooks certainly don't make themselves known. There's some great Romulan politics on display (something Trek has always done exceedingly well), numerous fascinating & emotional personality conflicts, inter-galactic intrigue...and then the big old Whale Probe from "Star Trek IV" bounds onto the scene once more and throws everyone for a loop.
There's even a Borg reference...if you're paying attention. :)
It really IS the kind of Star Trek novel that sweeps you away on the kind of adventure every fan dreams of having on board the USS Enterprise...and it WILL leave a massive smile on your face upon completion.