The only saving point for this book is that it's a very easy read.
Otherwise, it's just so so badly written. If I hadn't already watched the series in which this book is based, I wouldn'thave understood half the things that were being said.
The author had such an easy job to do: transform a screenplay into a novel. The plot was there, the characters were there, they just needed to translate it into a different format. But what they did was just badly describe what was happening on the screen, except they didn't even do a good job at that.
Anyway, if you consider reading this book: don't. Watch the series instead.