I can only give this three stars despite having enjoyed the previous two books in the series immensely. I never really got into the book and found it hard going all the way. I even looked at the last pages at one point to try and find the motivation to carry on but that didn't help either. What was wrong? Difficult to pinpoint, but one of the reasons was probably the abundance of violence and doom and gloom early on in the book. Obviously if you like that sort of thing, this one may be just right for you, but I don't think it will appeal to those that like me are pretty sentimental and love a bit more sunshine in their reading material.
Apart from the reviews here, you may also want to check out the reviews on Amazon.com which are the total opposite of mine. Hopefully between all of them, you'll be able to work out if 'Full Circle' is your cup of tea.