My honest opinion on major balance changes or champion reworks since I've been playing.

Not including straight buffs or nerfs but mostly just reworks, since I started playing Good changes ( not initially but I think now it's fair to say this ) Meh Changes ( May be biased but I don't like facing her with the new Q ) ( too early to tell ) Bad Changes ( Not what he needed changed )

As you can see Riots balancing isn't perfect, but it's not nearly as bad as some make it out to be.