Instruct: Classify a review into positive or negative sentiment.
Query: Outstanding memoir - truly exceptional

I read this on Kindle, the formatting was excellent. Porter was serving on General Thomas's staff at Chattanooga when Grant was first took over all command of the Union armies. He was so impressed by Grant's immediate command of the situation, not just at Chattanooga, but in all the areas wherein Union armies were in the field that, when the opportunity arose he asked to be transferred to Grant's staff. From then on he was a close aide to Grant. One of the more interesting missions he undertook on Grant's behalf was to travel to Atlanta to visit with Sherman about possible future actions. His notes are detailed and reveal a great many of the details of Grant's life and behavior bot under fire and when in a relaxed more personal setting. He writes well and smoothly is articulate and although he occasionally shows hints of a bit of hero worship he is extremely careful to stick to the facts.