This is a charming book in its own placid way (had there been the possibilty, I would have rated it with 3 1/2 stars).
Initially, I thought that the main subject was adoption, in reality this book explores more than that. In fact, I believe that its core revolves around the issues of family dynamics and integration in every sense of the word, starting from adopting babies from a far away country/culture and the subsequent adjusting to a new life, all the way through the struggles (for the older members of the family) to become well-integrated in a foreign country.
This is true especially for Maryam, one of the Grannies, who moved to the USA as a young bride from Iran. Although the narrative gently shifts from character to character (the two adoptive families, the new babies, all the relatives on both sides etc.) -and each and every one has a fair share of space in the book- I perceived that the main character is Maryam herself.
Sha has been a widow for years and it seems that, to this day, she has a sort of polite resilience to adjust to the American way of life (although she doesn't seem to miss her native country too much). Even so, she has found her niche and is content with the daily regularity of her life, until someone belonging to the other adoptive family -and to her, the stereotype of everything American- starts to show affection for her. Her sense of belonging, emotional and geographical, starts to oscillate causing a lingering and subtle vulnerability.
I see the rest of the story (the adoptions, the descriptions of both families and most of the ensuing situations), almost as a contour line surrounding Maryam's tale.
On the whole, I'd say that the characterizations in this book are good and very real-life, but the story line is a bit weak. Not too memorable but certainly a pleasant read, even comical at times (the give-up-binky party was very hilarious). I think that this book is suitable for young readers too (14+).