I am just leveling characters through their class quests ( 12x exp if subbed). Two boxing means that i do some of the instance portions of class quests twice, but you level so fast, its ok to repeat them like that for me. But having two characters means that all the world zone mobs just melt ..other than zone bosses.. they take some coordination and healing. But normal heroic mobs and below die super fast. And now that you can cast GTAEs by double clicking them when targeting a mob..its just fun seeing lots of mobs die in an explosion of lightning..bombs are whatever your class gtae ability is.
I will also say that its all soloable as well.. i just like two boxing to make grinding through mobs even faster..and at end game i plan to gear up and try to two box some FPs with companions.
I need to add that they said the stories in the expansion are solo only.. you wont have the option to allow a group member in.. that bums me out.. but the non story quests/grinding will be easier with two.. so ill do those twice as well.
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