The book ties up the other two nicely, but that doesn't mean it was done well or in an interesting way. It's still just as readable as the prior two, but it falls flat in comparison and lends itself to a lot of predictable tropes and too-easy-to-follow paths. There's nothing that leaves you guessing, especially if you remember most of what happened in the past two books. Even if you've forgotten, he reminds you of it incessantly. You know who is going to do what.