His kit is just so strange. It doesn't seem together at all, and his ultimate counteracts what he seems to want to do, which is seige, but his auto range is poor. At the end of whatever discrepancies exist with his character though, he is one hell of a lane bully, and brutally good at his job. His passive is probably one of the best in the game, it just exists on a character that has, persay, little use for it in what most people want him to do. I still feel as if he wants to become a bruiser, which would be really awesome if he had the stats for it.
At the end of the day though, whatever people say, I've almost always had really good success with Urgot, as hit kit basically makes him excellent for living between bruiser and marksman. That gives him some of the best dueling in the game. I mean, 15% reduced damage? How do you lose a 1v1 with that power constantly applied, with a slow, armor pen., and a spammable projectile? All he really needs is slight stat increases, but then I'd think he'd be too good at that point.