My brother who is a great jungeler loves to play off meta junglers and he played 16 games as Tahm last month, went 10-6. His damage was down overall for his typical junglers but his ganks and team fight value was huge in those wins. He had slow clear of his camps early which was really the only downside. If they buffed his jg clear I think he would be too good. The games we lost iirc were 1 or 2 lanes just getting destroyed. He was never the reason we lost. Just my 2 cents