The thing is, it's obvious she actually eats what she cooks -- I can't stand these other chefs who pick at the food they just made with the "Oh, I just love this!" exclamation.
I enjoy watching Nigella work, she's is so much fun! Her personal story, the loyalty to her late husband, how he would be there at the table (in some episodes) enjoying the company even though he could not enjoy the meal very touching.