Notwithstanding the magic, the camaraderie and the Weasley twins, what I enjoyed the most about the Harry Potter-books was the relish I felt Rowling took in telling her story.
Sadly absent from 'The Casual Vacancy', it is conspicuous here. (Galbraith is Rowling writing under a pen name.)
This is a classic, old-fashioned whodunit inhabited by particularly endearing main characters. It is nicely non-violent (think Agatha Christie) and London is so present it almost constitutes a character on its own.
A pleasant read, I dare say. (Pronounce in RP)