Noob questions

Hi guys, I've been playing turtlewow and want to give this place a try. My most played expansion as a kid was wotlk. So I'm interested in the lorderon server

1 how good/ bad is the experiance as a returning player 2is the server unmodified wotlk? 3what country's are most people from? I'm na but I'm free in the afternoons so raiding with euros is fine 4what is the order of class popularity/ demand. Back in the day I played dk but I love shammy and huntard on twow so I could roll those too