as much as id have liked something else for a buff
http://champion.gg/champion/Garen
got to say, the result is impressive. lets see how long it lasts. objectively, they accomplished the exact opposite of what they wanted. the armor shred was supposed to be a buff that increases his team utility by granting him higher than average armor shred with 
all it really did was incentivise him to skip cleaver for lethality, and his teammates benefit less from his 25% armor shred than they used to when he still wanted the 30% from the item.