I'm not a die-hard fan of either chick-lit or Parks but picked this up for some light relief and would say that it half delivers.
The characters are all very predictable: Fern the florist, lazy old boyfriend, gay best friend, new rock star Robbie-Williams-alike new boyfriend etc.
Fern can often be really, really irritating: after moaning on about her current boyfriend's inadequacies, she then issues him with an ultimatum - propose or they're over. And, later, almost forces herself into an unwanted marriage since she 'has no other option'. For an educated girl of 30 with a job that's really pathetic...
However, the fun part is when she's whisked off to LA to live a life of wealth and luxury, and Fern's huge enjoyment of the whole thing is completely infectious and fun. The contrived 'chastity pact' , though, seems absurd and neither of the men were at all attractive in my view which rather spoilt the point of the reading experience.
So really no more than brainless fluff, completely throwaway and forgettable.