This set of three interwoven short stories has a great premise. One of the characters, the demon Dew, deserves his own series. Those two elements are worth four stars, but the book had some fairly major flaws that cost it a star.
Unfortunately, some of the writing - especially the dialogue - could be tightened up, and I get the impression that the authors were trying to so hard to explain the way demons and angels function on earth they forgot to show and instead spent too much time telling. It's a very quick read; perhaps if they'd used more words for more complicated plots it wouldn't need to feel so expositional. I look forward to more installments in the series, if the authors boost the word count.