Kayn is mostly in a good place

So browsing through the boards I've noticed, as there always is with a new champion/rework, A LOT of posts declaring kayn as OP or Up and I just wanted to throw my hat into the mix. Kayn is, as he is now, largely pretty well balanced. He has good damage, good poke in lane, good sustain, and an incredibly helpful passive which means that he's never really useless, in my opinion, the people who are complaining about him beign useless simply don't understand him yet, they're likely the kind of people who play a champion once, feed since its their first time, and immediately decide he's underpowered, without actually taking the time to try and learn him. He's not too overpowered, either. However I have noticed a few bugs which do make him frustrating, to say the least. The most notable of these being, when you use your E and move out of a wall, it never seems to last the full extended duration, which has screwed me over a lot of times. Its possible I just missed a note saying that the boost only lasts while in walls, but I digress. Kayn, despite a few flaws, is in a pretty powerful position now; he has the ability to always become a useful factor so long as you play the early game intelligently, and definitely fits the mould riot wanted him to fit.