So still nobody is talking about the secret world.
I've been playing for two weeks and it's really not bad.
Pretty much you join 1 of 3 factions and you battle fascinating supernatural forces all over the planet: zombies, vampires, etc.
Your character doesn't level. You get XP to unlock abilities and SP to unlock skills. Skills determine what level gear you can use - so I suppose it's close to character leveling.
One of the catches is that any character can play any role: dps, healing or tanking. You merely rearrange your gear and select 7 active an 7 passive skills that support your role.