i like how pretty much this entire thread is arguing about whether or not madoka is a good anime, rathar than arguing about whether or not it would localize in the US well.
if you're looking for my opinion, it's not bad. i liked the character designs and not much more when i first watched it but got more attached to the idea behind it a while later. don't let anyone tell you that injecting death and tragedy into magical girls is a new idea, that [parasitic bomb]'s been around for years. madoka pulls it off in an interesting manner though.
of course i'm more concerned about how my waifu will sound in english than anything else, like any discerning anime no-lifer.