I have been playing off and on since it was first released. I have a Paladin, and a Rogue, and a few low level characters. Really I just play till im bored, I don't force myself to play just so I can hit level 60. When I feel up to playing again, I just continue with my existing character.
Rogues are a pretty decent class, I was amazed and how fast I could move through the quests by myself without needing help from a group.
But when I did need help, for some of the instance quests, it was really hard to find a group. When people were looking for a group they kept specifically posting "NO ROGUES" either they're group was flooded with them, or they found them to be a useless class. Which is stupid because everytime I quested in groups, I was always first or second in the damage done, even in a group full of hunters, warriors, and paladins.