I actually like McDonalds's coffee, given the option of being able to order a breakfast and grab a coffee to go. It's not as good as Starbucks or Peet's but it's good enough to fill my caffeine needs.
One improvement they've implemented when ordering in drive thru, is the option of having sugar and cream put in your coffee, vs. having you do it. Now I don't have to pull over and fill my cream + sugar, it's all in there.