After two years of study, I've finally finished this monumental textbook of Middle Egyptian grammar. It was very comprehensive; though a little complicated at times and certainly not the last word on everything.
Certainly NOT the book to start your Hieroglyphic Egyptian adventures with, though! For that, I would suggest Collier and Manley to start, and then either this or Hoch; if you are going to do both (which I certainly plan to - I've only gotten through half of Hoch) I would actually go with Hoch first, and leave this as the third of the triumvirate. There are ~three other pretty excellent textbooks that I intend to check out and work through as revision, but these are the main ones.
I also highly recommend working through this with the online group GlyphStudy, which assigns weekly chunks of the exercises (usually ~6) to work through and submit, after which a moderator corrects them. This weekly accountability is the only way that I've been able to slog through this book, interested as I am in the language.