I like the hero system, as it eliminates the need for crappy PuGs. Pick up groups had hit the rock bottom of skill level, and so you either get it done with guildies or henchmen, and heros are like henchmen on steroids.
Once again they added two new classes that are fun to screw around with, but in the end neither is useful to a well balanced team (the paragon would be if it hadn't been nerfed into oblivion).
Anyway if anyone actually still plays NF/any GW game, feel free to whisper me (IGN: Arathor Gilfinwe).