Janna is overall strong but not really excels at anything, well maybe except for disengaging. Want engage? Leona and Thresh are better choices. Need trading power? Nami and Sona do a better job. Sustain? Soraka, Nami and Sona are better. For disengage she might be the strongest support, although Nami and Thresh are really good at that too.

Talk about overstatement.

That's 100% ********. She's one of the strongest disengage champions in the game and has super strong displacement.

Her weakness is that she has 0 lane presence at all because she doesn't have any damaging spells and other supports like Nami can do the same job in lategame (disengage / peel)

Essence Reaver is still inferior to Youmuu's Ghostblade, Blade of the Ruined King and Infinity Edge rush.

I am honestly not convinced with the Phantom Dancer after Essence Reaver either since you are lacking damage at that point as well as survivability

Vayne is an easy champion to play against as Lucian. You'll be more mobile and you'll deal more damage from early to mid game. With some feed you'll be more useful in the late game as well

Caitlyn can poke you with her (now even safer) range and you can't honestly do much about it. Caitlyn usually wins laning phase if she has a decent support.

Your standard ADC runes are not standard ADC runes. Standard ADC runes have attack speed quints because lifesteal quints are pretty bad atm.

Lucian has amazaing synergy with Janna. I think it's actually even (way) better than with Thresh or Leona. You can just all-in at level 1, you can't lose a trade when you get your q+passive out and have a Janna shield on you.
Edit: nvm, something was wrong on my end.

Thanks for the feedback, will look it over and fix accordingly

I think your biggest problem is lack of BB Code, walls of text makes it really difficult to read, so take a look at these guides 01, 02 and try to use more BB Code (I'm just trying to say it nice, but you MUST use BB Code).

And the pros/cons picture looks really weird and hard to see with green on white, just write it on the guide.

All feedback is greatly appreciated