How good was prime Priestahh?

I’m relatively new to being a diehard competitive CoD fan, I’ve always known about the scene but only really started following heavily during the MWII season.

I know Priestahh has been a longtime CoD pro (minus this year obviously), but how good was he back in the day?

It’s clear to anyone he’s always been a great mechanical player, but was he a demon coming up in the scene as a youngster?