Sandford's crime novels are always an interesting read and this is typical of the writer: effortless prose, well-drawn characters and scenes and an admirable economy of language.
With his 'Prey' series, we always used to follow his detective, Lucas Davenport, alongside the criminal. We'd know things that Davenport didn't and we'd be inside the head of the bad guy now and again. That offered a frisson, a dimension to the novels absent from their competitors within the genre. The Flowers series seems to be far more a traditional detective novel, where one inhabits only the detective's head, and I think loses a certain distinctiveness in the process.