I googled the worst book in the series because I'm 3/4ths of the way through book 10 and it's KILLING ME. It just started picking up a LITTLE bit. I mean, it felt like Elayne was either taking a bath or sipping bad tea for 200 hundred pages.
All that to say, very excited to wrap up this book and get into book 11.
To answer the question, book 9 was slow but one of my favorite endings. I couldn't put down the books between 5, 6, 7, 8. I read all of those within a month. Book 10 has taken me 4 months haha.