I don't think it's addictive. Sure, it's hard to draw yourself away from the screen when you just advanced a high enough level to hit with more damage, but when you want to stop, it's a simple case of finding something else to do. Something that will keep you entertained for at least half an hour. Either that, or gradually playing less and less, until you're bored with it. But what would my opinion matter? I'm only a f2p level 58 with a total of 623