I think this is not the first topic on this, but i think i should leave it here:
I have been playing for about a month now and overall the game seems balanced. But everytime there is a player playing flash, mainly in gotham heights, that player gets a million kills and generaly 0 to 1 deaths. He is impossible to escape from and almost impossible to keep him from escaping either.
Have seen it get in a tower area, hit someone and get out, 3 times in a row, killing an enemy player without getting hit by a single shot from the turret. Several times.
Of course, those players skills have to be considered, but anyway, havent seen anything near this with any other champion.