I like where Ambrose is because it makes sense if you've been following him for a long time. He used to be an unstable alcoholic with serious issues, but this could always be traced back to having a very rough life, not because he was inherently a sick person despite his own claims. But now he's spent years making millions of dollars, he's held multiple prestigious titles, he's beloved by fans, he gets to chill with his girlfriend on reality TV shows, and he's wrestling with the likes of John Cena and Triple H in multiple WWE PPV main events. Life's been good to him, so he's mellowed out. He's also gotten smarter, and knows how to use his own reputation as an "unstable" wrestler to his advantage. Instead of pushing himself too hard and falling off ladders or having a TV explode in his face, he knows how to use that reputation to his advantage to rope-a-dope Ziggler at Summerslam and Styles last week.
But it's not like Ambrose's inner darkness has gone completely away. We still get the occasional shade of classic Ambrose like when he powerbombed Jericho onto thumbtacks. Someday he'll turn heel again, and I hope when that happens they really go all out. Ambrose is in a perfect place to deliver some really good "I had it all!" promos.