I will tell you what the Manual of Prayers isn't. It's not one of those prayer books that seems to have every written prayer out there. It's not a prayer book that has unfamiliar and queer prayers, as some books I own have. It's not one of those prayer books that only has your standard Our Father and Hail Mary type prayers.
I will tell you that it IS my favorite prayer book because it has all the prayers I need without going overboard. It has the perfect balance of standard prayers and not-so-familiar prayers so as to make it very approachable, yet still different enough to inspire and captivate.