Plotwise this might be my least favorite in the series because nothing really happens in it as far furthering the main plot of the canon is concerned. Also, parts of the plot surrounding the prophecy don't make a great deal of sense in the grand scheme of things. However, if you're the type of person who is more impressed with the journey itself, then this book is GREAT! I think I've read it thrice, and I still get frosted with Umbridge's control-freak shenanigans. This book also has some great scenes involving McGonagall and Umbridge, and contains many precious & witty literary gems to savor.