A lot of other areas in your life are going to go neglected for a while, so I hope you have an understanding partner.
But seriously, this is one of the best games ever made. Its an mmo that plays a lot like a single player game, it has so much interesting content and you get to play it with your friends. If you have never played an mmo before, be thankful that you played this one first because most of the other ones are fairly lame to be honest.
If you like pvp, it has the best large-scale fantasy pvp system I have played and is set up so that you can even have fun and be useful from a low level (level 10). If you like pve and questing, it has amazing stories and quests on par with what you would find in many single player rpgs, with quite good AI on some of the bosses- and the fact that you can take these bad boys out with your mates is just awesome.
It has great atmosphere, armors/weapons, character progression, combat, and so much more- basically this is an rpg mmo fan's wet dream. June 7 is just around the corner, its going to be a blast.