This is one of my favorite piece of fanfiction, despite not usually liking Harry Potter fanfics with Slytherin!Harry premise. Very well written, if one could ignore the too-frequent cussing and violence, and gives very good (if not speculative) explanations about various rules of magic the series did not touch upon. The story is still very largely based on the Canon, but did a very good job on implicating how having Harry in Slytherin greatly affects the turn of events.
OOC is quite a serious business
for me, and what I like about this fanfic is how, while the main characters' darker sides are exploited and exaggerated, they ultimately remained true to Canon. Most Slytherin!Harry fanfic don't seem to reflect any changes in Harry's personality at being sorted in a different house than Gryffindor (although it should be, considering the difference in social circle); most writers are also too eager to put the Slytherins in a positive light, and depicting them as the most misunderstood, sympathetic, softies the world had ever seen
while derailing pretty much everyone else, mostly Gryffindors
, into pompous, glory-seeking jerk jocks
who treats the Slytherins unfairly simply because of their houses. This sort of Fan Dumb
is what gives me a bad impression of Slytherin!Harry premises in the first place.