The Indicator for Rengar's ult on the enemy screen is very sudden.
The darnkess that goes around the edge of the screen when Rengar is in range to hit you and is camouflaged, just suddenly pops up. There is no animation or transition. Seems a little bit rough around the edges.
Edit: Why is this being downvoted? It has no reason to. I'm pointing things out about the rework.