i liked it overall but found it to be one of those "death by a thousand cuts" kind of deals - there were so many little changes that my brain was being constantly pulled out of the show to compare it to the book and i found it overall quite distracting.
they also excised the bikers from the end of the story, which i found incredibly disappointing.
i think if this had been 10 episodes so it could breathe a little more, and a bunch of the changes were reverted so the book fans (or, at least, me) weren't constantly being put off for absolutely no reason, it would have elevated it from 'cute but inessential' to 'one of the best adaptations of all time.'