I read cozy and historical mysteries, a bit of Paranormal/UF, and to mix it up, I read science and gardening books on occasion.
Not as good as previous books. Slow to get going for me, and the 3rd person POV felt clunky, although that might just be me and my issues: 3rd present tense POV almost never works for me.
About halfway through the book, when the author stopped trying to summarise the first 4 books for the series-dippers, things finally started to pick up and I forgot about POV and became interested. There are a lot of players in this plot and you either love 'em or hate 'em. The mystery isn't a straight line from A to B, and that made the reading more interesting too.
There's a massive editing error in a later chapter (don't have the book with me) where a super-important text message with an Important Clue is received by Emma... and then received again by Emma a few pages later. It completely screws up the whole chapter if you catch it - and frankly, I don't know how anyone could have missed it: it's even the exact same sentence. This is Berkley though, so I've gotten used to their blatant editing mistakes.
Generally, this is a strong, well-written series with likeable characters and good plots, so I'll keep an eye out for #6.