I tend to agree with SailorAlea, it was great at first but then went downhill as there is a lack of things to do in game. Your either doing some lame missions, or getting owned by NPC's due to lag or sucky stats. Teaming up with people is kind of fun, but it gets old as you don't gain much EXP off of them and soon your the only one still at a low level who can't lvl up. It also takes -forever- to lvl up. I played 5 hours and in 5 hours I gained 4 levels.
Creating your superhero is fun, but if your not good at making a cool looking one, like me, you'll be dull with yours after a while.
IMO, save your cash and buy a better MMO like EverQuest2 or World of Warcraft.