I think character builder inadvertently dumbs things down. I game with guys who have no idea how to level up their character without it. I'm not kidding. Ask them how many hit points they get per level - they have no idea. Ask them how their hit bonus is figured - they have no idea. Adjustments made in game are invariably wrong. Ironically, these are the same guys that also have trouble with any DM fiat or non-standard conflict resolution - "I've never heard of that rule."
I refuse to use it myself because I find that I learn more about the game and am more inclined to "think outside the box" if I'm actually reading through the physical books.
I refuse to use it myself because I find that I learn more about the game and am more inclined to "think outside the box" if I'm actually reading through the physical books.