u/Mammoth-Paramedic974

I know the patch just released, and this is a very small sample size, but I don't quite understand how Gluttonous Greaves has such a high wr, matching, or even surpassing, Swiftfoot boots. Perhaps it's too early to start analysis, but I'm curious who decided to run these in their games and why? I can't quite see the omnivamp vision right now, but perhaps someone can convince me it's worth trying out into certain matchups or something.