WARNING! This not-really-a-review is seriously spoilery. If you have been living in a cave or something and haven't read the book/watch the movie/listen to people discussing about the series, don't read. Just run. Fast. 
 You have been warned 
 Ah, conflicted. The book contains introduction to a lot of my favourite aspects, for example : 
 1. Favourite DFDA teacher : Remus Lupin 
 2. Favourite Hagrid's magical creature : Buckbeak the Hipogriff 
 3. Favourite twist : The secret behind Moony, Wormtail, Padfoot, and Prongs. Although it's gross to think that Scabbers is actually a grown man. I mean...he slept on Ron's bed! He curled inside Ron's pocket! That's just...ew. 
 4. Favourite spell : Expecto Patronum 
 5. Favourite magical equipment that is not Fred and George Weasley's creation: Marauder's map. 
 The writing is as superb as ever. Also I loved that the story has become darker, more serious. And that the story didn't end with Dumbledore explaining things to Harry (and moral of the story to the reader). And Harry's parents' past has come to the spotlight without making Harry's story at the present paled in comparison. I applaud Rowling's ability to weave several subplots into a quilt of enchanting story, leaving just enough for imagination. And Oliver Wood's obsession with Quidditch. And Gryffindor finally winning the Quidditch Cup in Oliver Wood's last year. Frankly I just love Oliver Wood a lot although he's not one of the major character. 
 My least favorite aspect 
 1. Maybe it's just me but the time-turning thingy is kind of confusing 
 2. The ending contains the longest. Explanation. Ever. CAN WE KILL THE TRAITOR FIRST BEFORE WE CONTINUE OUR CONVERSATION, IN FRONT OF THE FIREPLACE, WHILE SIPPING MILK TEA? Yes, please. 
 Although I give the book three stars and I might reread this book not as often as the other, I still enjoy this book immensely.