Faction Change

Hi,
My english is not fluent so I want to make sure I understand it correctly. Faction change is irreversible so it means that if I transfer one of my chars from Horde to aliance this char will stay in aliance forever? I wanted to go aliance for 1-2 weeks and go back to Horde, for another 30 points of course. Is it possible?

Irreversible means if you transfer and don't like it GMs won't give you coins back and reverse it for you. You can transfer again if you don't like it but you pay for another faction change.