Alyssa Rosenberg recommends Tina Brown's The Diana Chronicles as the best guide to the upcoming royal wedding:

Brown does a great job of teasing out how emotionally awful it was to be a member of the royal family: this is a group of people who doesn’t understand that someone who’s had three strokes might not be able to make it to formal meals on time; or postpartum depression; or the idea that it might not be super-sensitive to keep your mistress when you’re trying to build an emotionally meaningful marriage. Yes, the Royal Family is insanely privileged, but Brown builds a fairly persuasive case that the money and status might not be particularly worth it. 

Anne Clark, creator of the "Kate Middleton For The Win" tumblr, is less sympathetic.