Tahm kench current state

Lets talk kench , overall pretty well designed champion. Cool back story, interesting abilities. I just feel like he is a little stronger then he should be. His W is very annoying to play against and really forgives mistakes made by other players. His damage is very large even if he just builds straight tank. His E is very frustrating to play against. Lastly his Q, I don't mind it, but i would just like the actual range to be displayed, as it is a lot wider than shown. I think his R is fine, nothing wrong there.

Now please don't down vote this into oblivion as just another salty " omg champion op please nerf " thread. Im merely trying to start a discussion on peoples thoughts on tahm kench. I think some reasonable changes would be to make his:

Q: Reduce slow, fix to show actual range. W: Bump up cd E: Maybe make the shield decay faster? Or only let him grey shield so much damage. R: Reduce passive damage.

Overall, I just think tahm kench is way to forgiving, and his ability to build straight tank and still dish out so much damage is a bit crazy.

Happy holidays everyone!