The Priory of the Orange Tree

The final battle felt a bit anti-climactic. All that building up for a few pages of not very convincing battle. Kind of spoiled the book for me.
Yes, it's epic and captivating, but doesn't hold up when I think about the characters. Didn't see much change in them. Didn't understand why Roos out of the blue went from hating Sabran and going to kill Ead to helping the and giving a crucial piece of information.