Don't underestimate the value of your input. Discussing symbolism and writing style are indeed aspects of a quality book discussion, but so is what you just offered. You shared your feelings and you made me want to pick up the book and start reading. I'd say your post was just what we need here at BookTalk.
Weeks ago I bought a copy of A Thousand Splendid Suns, but have yet to read a single page. I know I will eventually start reading it. Right now I'm focused on reading our non-fiction book selections. I usually stick with non-fiction, but some fiction gets into the mix at times.
You said that you "didn't want to put it down." This is what I love to hear. And hearing this out of someone that doesn't have an agenda is sometimes enough to motivate me to buy and read a particular book. When I read book reviews by newspapers or magazines or literature web sites I take everything I read with a grain of salt. Who knows if the reviewer is completely objective or not? Maybe they are associated with the publisher and/or author and have a strong financial incentive to cast the book in a good light. I'm a skeptic about everything! But when I read an honest appraisal of a book, such as yours above, I give it more weight.
So thank you for posting in this forum and I hope you continue to do so. This book discussion isn't getting any attention here on BookTalk and maybe a few good posts like yours will pull some more readers out of the shadows.