I wish I had read this during my first year of graduate school. It was probably a lot easier to get through now that I'm so familiar with the material, but it still helped me make a lot of new connections and it really influenced the way that I'll explain the concepts to others in the future. He covers the parts of quantum mechanics most relevant to quantum info and quantum computing too, in a very applicable way, which most other textbooks gloss over or touch on more abstractly.  I'd recommend it to anyone who wants a better qm foundation, and I'd doubly recommend it to anyone who has a basic physics background and wants to see how to apply it to quantum information and quantum computing.