I concur. Just finished the book as well & it is absolutely incredible. I was embarrassed how little I knew about WW II with respect to the war with Japan. This is a must read!
I haven't read the book, but I echo your sentiments in regards to knowledge of the Pacific theater. For some reason, it's just never really grabbed my attention the way the European theater does. I've read Band of Brothers (Like 5 times), the memoirs of **** Winters, D-Day, and Patton and Rommel: Men of War in the 20th Century. That last one was especially good for me, as Rommel is my personal favorite commander of WWII, even though his role was limited because of the failed attempt on Hitler's life.
Meanwhile, I've never read a full book on the Pacific theater, not even The Pacific. I've been thinking about diving into Flags of Our Fathers, though. My Pacific knowledge is limited to a few books published by Time about the war. Those are good for trivia knowledge, but not in-depth stuff (I dominated academic bowl in high school when WWII questions came up thanks to those books).
It's just fascinating how one-sided my perspective of the war really is.