I read it because, at the time, the summary didn't have the relevant warnings and I didn't know what I was getting into. Didn't enjoy it. Canon childhood was filled with plenty of hints about neglect/emotional abuse, which is plenty shitty enough. There's no need to heap on physical and sexual abuse on top just for shits and giggles. Plus, it's just depressing incident after depressing incident, where there is no hope for a better future and no bright spots to at least lift your mood periodically.
There comes a point where reading chapter after chapter of watching someone get kicked when they're down for no purpose gets tiring and boring. I stuck with it until the last posted chapter for the sake of finishing the fic, but I haven't gone near it since.