My full review is here on my personal website. I'll post a few excerpts here, though:

5.0 out of 5.0 stars

The very worst thing about this book is when the giant eagle rescues Frodo and Sam. Why the hell didn’t Gwaihir just help them destroy the ring in the first place?

The very best thing about this book is when Frodo fails at the last step and Gollum saves the day, so to speak.