I believe this book is considered transitional Nietzsche, having been written after _The Birth of Tragedy_ but before _Beyond Good and Evil_, _The Genealogy of Morals_, et cetera. It consists of four essays: on David Strauss, history, Schopenhauer, and Wagner respectively. In my opinion the 'history' essay is the most interesting; Nietzsche asserts that too much awareness of history enervates the mind, robbing it of the raw vigor he considered so important. Not en entirely original thought, perhaps, but knowledgeably and poetically argued.
This translation seems to be clearly the best of the three I perused in the bookstore: the vocabulary is sharp, forceful, and true to what I know of the German. I don't think this is the place to begin one's study of Nietzsche, but if Walter Kaufmann's collections (The Portable Nietzsche, The Basic Writings of Nietzsche) don't give you your fill, you could certainly pick up this one next.