I don't usually read chicklit, but I read Pamela Ribon because I enjoy her blog and her sense of humor.
This book didn't charm me as much as "Why Girls are Weird" did. Granted, the subject matter is a little dark -- the protagonist, Charlotte, is in limbo as she decides whether to try to reconcile with her estranged husband. She gets pretty depressed, and eventually reveals the what the low point of the marriage was.
Unfortunately, none of it seems horrible enough, and Charlotte comes across as whiny and needing to just snap out of it and get on with her life. The secondary characters (Charlotte's coworkers, one of whom has a Skype boyfriend & drafts Charlotte into a roller derby team, the other of whom has unexpectedly impregnated his wife and is dealing with imminent & possibly unwanted fatherhood) are more interesting and well-rounded than Charlotte.
Ultimately, the book is not terribly nuanced, but it's a fun read for anybody who likes chickbooks or Pamie's online writing.