Personally, I love the show. I realize it's a reality show so I know to take it with a whole truckload of salt.
I've never really wanted to have kids, but somehow when I watch this show it makes me think "Hmmm, maybe I could have just one". I enjoy the show for what it is and find that while people make think they asked for it (publicity), it's the tabloids that fuel that fire. The show itself doesn't make people want to know if one of them is cheating. It's the articles in magazines that point out that "OMG, he went to dinner with a woman who wasn't Kate". As though a husband is only allowed to have male friends and a wife only female friends, and oh the two may only eat dinner out with each other.
Regardless of whether the allegations made in the tabloids are true or not I sincerly hope that they will stop the show. No matter how much I love it, I would rather they stop the show and focus instead on their children and their marriage.