These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Eight Deadly Words: The author makes it extremely hard for the reader to care about Harry and Hermione, depicting her as an Extreme Doormatshadow of her canon self who paradoxically manages to murder someone without any character development, and him as a shallow bastard obsessed with his wife's weight and inadequate breasts.
So Ron mysteriously disappears, and at that same time, Hermione moves in with Harry, who immediately transfers all of his accounts to France and the two of them leave the country. How long do they think it will take the Ministry of Magic to extradite them?
Harry had, for years, become increasingly disillusioned with Dumbledore's secret-keeping and manipulation of him. So much so that he named his middle child after him?
Ron the Death Eater: The fic's treatment of Ron can best be described as Dark Secrets with better grammar but even worse characterisation. Ginny gets it bad too. As does Dumbledore, posthumously.
Hermione and Harry come out looking pretty loathsome themselves. Hermione's entire marriage to Ron was a sham to stay close to Harry in the hope of running off with him, and Harry only married Ginny for her looks and wangsted when she put on weight.
So Bad, It's Good: It has almost universally negative reviews on FF.net, which is almost unheard of for anything not in the My Immortal category, and is mainly worth reading for the Narm.
WTH, Costuming Department?: Ginny's dress in Chapter 3 is supposed to be in godawful taste in-universe, but even with that in mind it still doesn't make sense in the Potterverse.
Macekre: The American dub by Brenco cuts out 20 minutes of the film.