This book is like a good Bánh Mì. 
Romance as soft as the baguette, the backdrop of Sài Gòn, a city as full of flavors and spices as the seasoned meat and a flavorfull writing style with beautiful insights in the Vietnamese culture as fresh as the classic vegetables in a Bánh Mì.
And last but not least: let's not forget the pinch of grief. 

The book was really well composed, the only criticism I have, is that the ending felt nearly as unsatisfying as going to Sài Gòn without trying streetfood. I would have just wished it was a bit longer, to establish a more concrete resolution.