I think a lot of people were surprised when the E turned Ziggler. I was. Personally, I think it was a good move. Heel Ziggler had been jobbed out by his terrible booking while he was Mr Money in the bank. He never really was good as a show off, he never really knew how to play to the crowd and be condescending and bask in the boos like he should have, given his egotistical gimmick.
Now that he's a face, his many losses, injury, and quest to regain the title make him an underdog, and that works very well for the new Ziggler.