Early on in the book I thought: "At last! Here's an author who has made me want to read her other books! I *love* this! You mean - there are more? This is actually a series? Hooray!" and compared it to some Agatha Christies. After all, at least it is set in a small English village, with a non-police female sleuth who always gets it right (although in this one, the police seem rather more awake and alert, and generally nicer and affable).
Later on in the book, I revised my view slightly, and made it 'Midsomer Murders'. A jolly good mystery, and I could see it as a TV series, but...
Then, near the end of the book, the f-word crept in. Only once, and then it was being used by the bad guy, but as far as I am concerned, once is one time too many.
There were rather a lot of obviously well-known characters (who I did not well-know) and references to other books. I think it would be better served if read as part of the series, starting with #1.
So my 'final answer' is: I really liked it, BUT...