I bought the book for easy entertainment and because I liked the title.
First I gotta say that the title in my opinion doesnt match its content.
Now my main-critic: the protagonist Martha (as well as her mother Betty) is a really "weak" character, I was pretty annoyed by how she just lived for everyone but herself and how she let her sister boss her around! Yes of course, this is just how the author formed Martha, but I just couldnt enjoy her character and so on. Then also I found it just not realistic at all that Martha & Betty's "Nana" wouldnt speak about what has happened in the past...(SPOILER ALERT:) I mean come on they have missed and havent seen each other for over 30 years ??! And Gina also kinda made me angry because she has no right to decide upon Zelda's life - especially when she her girlfriend this behaviour is just inappropriate and not realistic at all. At least in my eyes.
Plus there's no highlight in the book, it's just a long and quite boring story.
So yea, final sentence: I would not recommend the book, you definitely find better ones for this price.
Hope this helped you :)