Blend of WOW & Diablo looks good and tons of classes to play things to do
You can change your job anytime you want which is nice. If I get bored of playing my wizard I can switch to any one of the others, archer, warrior, ninja, brawler, medic etc. Theres also plenty of non combat related jobs such as chef, miner, blacksmith, kart racers.
Kart racing can be extremely fun. Its basically racing other cars on a large track and you can also join crash up derby's. I've been playing for a few weeks now and while growing a little bored of the combat jobs having to redo instances I recently started miner and blacksmith which got me going again.
The games free so what do you have to lose.