I think some of his stuff is fine. His oven roasted chicken is the best method for making it IMO (although I haven't tried the beer can chicken that everyone seems to love). I always modify his stuff, but the general idea that cooking doesn't have to be intimidating, and that fresh ingredients are easy to use is a good one. Plus, he has pushed for more use of free range and humane rearing in poultry, eggs, and other meat.
I have actually found things to like about all the celebrity chefs/cookbook people here. Well, all except Gordon Ramsey. I don't bother with him. I find him too repellent.