In one word: epic! 
 Yes, the plot is not new and exciting. Girl has some troubles. Boy has some troubles of his own. They end up on a road trip from California to Connecticut and ends up taking a very, very epic detour. But the journey they take is amazing. I like that there were visuals in the books as well, illustrating their trip. I have to say that, personally, I did not feel the author's descriptions of the surroundings were very vivid, but the illustrations and 'snapshots' and different little trinkets (printed on paper so the book isn't bulky or anything) really did help to make me feel like I was on a real road trip. There were playlists too, with awesome new music for you to check out. How cool is that?! 
 What I really, really like was that the author wrote the 'drama' of the story really well. It didn't come out as mopey, overly angsty, or just plain wrong. It was perfectly written and the best thing is that this book isn't a love story. Well, it is, but not with the two main characters. It only becomes about that towards the very, very end of the book and by then, it becomes so natural, then you can't help but root for them. 
 There's also very interesting characters being introduced throughout the book which is a joy to read. Really, I know my review isn't doing this book any justice but just read it. :D You won't regret it! :D