A pretty good book, but I'm not going to follow the series.
First, the good parts: Stan (short for Kristan) Connor is a pretty good protagonist; she's reasonably bright, keeps herself together most of the time (these are stressful circumstances, of course, so she gets some slack), resourceful when under attack, and the author helpfully gives her sufficient investment income that she doesn't have to be immediately searching for a job (seeing as she's just been fired from her PR job for, apparently, being neither psychic nor possessed of a magic wand).
Plotwise, the breakup of her relationship with her boyfriend, with whom she had nothing in common except for their jobs, was quite believable (I suspect the author has experience in Corporate America, and does not love it to pieces). The reason for the murder of the vet makes as much sense, in the end, as any murder, and the device the author uses to keep the tension up is excellent, if not 100% credible.
On the setting, I enjoyed trying to work out where in Connecticut the imaginary "Frog Ledge" is supposed to be (conclusion: it's sort of a combination of Lebanon (small town) and Windham (the frogs, a story that was apparently irresistible to the author - not that I blame her). Mugavero gives nice descriptions of the streets, houses, and so forth, evoking exurban Connecticut pretty well.
The reasons I won't be following the series are, in fact, highly personal. First, I'm not a fan of going overboard on the "organic" thing, though I'm sure it's true that some pets benefit from eating home-made rather than manufactured food. Second, the main character believes in homeopathy and the book has one of those remedies "work." Now, I'm perfectly willing to suspend my disbelief for people who can talk to ghosts, magic that lets someone sense vibrations off of used clothing, cats who can literally walk through walls or be invisible, etc. These are amusing conceits.
But homeopathy offends me, because while its principles are no less magical than the things I just mentioned, it is something that too many real-world people are foolish enough to rely on, to their detriment. Herbalism, okay, plenty of medicines started out as herbs; healthy organic food, fine, probably healthier. Homeopathy, no. The strain of anti-vaccine attitude that's given a modest platform here also gets my goat.
So these things flip the "suspension of disbelief" switch: when I'm irritably thinking "Bunk!" I'm outside the story looking in. And that's nowhere near as much fun as stories that successfully keep my disbelief suspended, so why bother reading more of these?
ETA: Also, I'm not quite sure what to do with Izzy Sweet, the local chocolatier who's African-American and whose lack of popularity with the locals is because she's new in town. Umm. Juust not sure.