This was just a cute little teen(pre-teen) YA "romance" (utterly innocent, she hopes for a kiss). Per the title, the POV "flips" between the two MCs, Bryce and Julie. Starting when they meet in second grade, through middle school. We get to see some scenes from both sides. Both told in first person, past tense. 

I like it when a book has chapters listed numerically - here they were just the simple chapter headings  (which didn't include the POVs). To me rather than just "Diving Under" "Flipped" it is just SO much more helpful to have Chapter 1 (Bryce) Diving Under, Chapter 2 (Julie) Flipped ... but the chapters did just alternate, and the headings are helpful if looking for a specific spot (although not as helpful as numerical chapters and listed POVs). 

The love of climbing the sycamore tree reminded me a bit of [book:The Eagle Tree|26706264]. The egg adventure (incubating, candling, hatching, raising chicks) had some parallels to personal experience (although with ducks instead of chickens). 

This was cute and sweet. I'd give it a thumbs up ... although I'm not sure how much it really impacted me and how much will actually stick with me.