No one played Cho, Talon or Fiddles against him
Then there is this list.
These champs do well, the bolded & underlined are hard counters in lane that WILL shut him down when played properly:
He's still beat by 33% of the champs in the game without being a total fool or understanding how to be patient.
Still OP because he is countered by 33% of the champ pool and two items depending on builld?
He is also hard countered by buying into MR. Getting 50% reduction is cutting his single damage skill in half (hence all his item purchases being cut as well).
AP Yi getting a nerf is telling me that this game company has succumb to fools who really have no counter argument to the fact that he is flat out beat hard by a large set of items and champs.
He is not hard to beat, and hasn't been hard to beat since beta.
If you were having a hard time, then explain why and I can tell you why you can do better.