Great, enjoyable summer read!! The atmosphere is amazing and really draws you in. Additionally, the characters are likeable and, more importantly, relatable. Flawed and dishonest, yes miscommunication will occur. I didn't mind and actually liked that because it made them much more human. The flashbacks scences are adorable and match the teenage spirit so well. Their awkward meet up included - that's on being a teenager. Sam and Percy are just adorable. 
The ending was fine but felt a bit rushed. I would have liked some more time at the end. Besides that, I'd definitely recommend this for a light summer read.