While Day incorporates his classic writing style, strong characterization, and sense of humor, it's a miss for me in one key area. Specifically, the one area that keeps me reading Day's works is his innate ability to build tension between two characters I - to totally submerge the readers in the conflict and/or developing romance, until it explodes in a lustful ball of fire. Here, due to the story structure, this is missing.
Overall, the story is well-written, interesting, and included enough drama to give it kick. It rather reminded me of 'My Best Friend's Wedding". So, personally probably a two-star, but I hate to penalize the author (who wrote a perfectly good book) because of a minor personal preference. Besides that - I rather like that Day continues to experiment in his writing.