no impact, too easily camped in vertical jungle meta. nobody is playing for lane phase anymore, cheese picks are simply the norm now. nobody wants to play legitimate toplane champions, they want to cheese kills early as possible. mages top are at least as common as traditional picks.
i can consistently do very well and still end up losing because there is no real disadvantages to junglers just chainganking me, and they still end up higher level and cs than my own jungler doing krugs and watching me die.
i very rarely see even games, it always ends up in stomps, now more than ever before. it isn't fun.