What were the arguments that McDonald's should pay damages and what were her damages?

There is a lot of discussion regarding frivolous lawsuits but is this always true? This is a two part discussion. First, find the case involving McDonald's and a woman who sued when she was burned when she spilled coffee on herself. What were the arguments that McDonald's should pay damages and what were her damages? Part 2 is to find another case where you feel the lawsuit could result in positive changes.