Firstly, why are we talking about wrestling here? I've not once during my fanboyism claimed he's a good wrestler. Or a fantastic wrestler. I've said he was a good seller and that wrestling really doesn't bother me. I'll take a feud with a good story over a feud with just good wrestling. So to tell me he's bad or has improved at wrestling specifically means absolutely nothing to me. It's like telling me the sun keeps us warm.
Secondly, I'm a mark for psycho-related gimmicks. I'm one of the biggest Joker marks there is, so no doubt that helps me enjoy Ambrose more than most. But, you're definitely in the minority who don't enjoy his mic work, so that may say something. His pre-WWE stuff was one-dimensional because he tended to have that gimmick 99% of the time. He isn't going to cut a promo about flowers if he is a psycho asshole. Stopspot said the same thing in one thread that he's one dimensional IN WWE! I was like, wtf, he's had one fucking run with Shield and he's one dimensional? Dafuq is wrong with you. The guy has already shown variety with his current gimmick compared to any of his pre-WWE ones, and he has been the shining star. Read the reviews of Shield and look for the star of the team, Ambrose is labelled as that shining star 99% of the time. Reigns has the look, Rollins has the mat-wrestling skill, Ambrose had it all. By that I don't mean he's anywhere near as good as Rollins in the ring, I mean he's definitely good enough for any kind of push. WWE - like me - don't give a fuck about outstanding wrestling skill.
The psychotic gimmick itself is saturated, and probably way more so on the indies, but I don't watch independent wrestling productions at all. So over saturation definitely isn't something that I, and the majority, give a single shit about. From what I have seen though, he plays it so much better than others who have played a similar gimmick. That's why I like him. He plays it SO well. I don't overrate him, I don't refuse to admit his flaws, I enjoy the fuck out of him. Why do so many wrestling fans, like Alkaline, give a shit whether someone is overrated or not? Who cares? Why does it matter? Ambrose is in the fetus stages of his WWE career right now, and people are already trying to pick holes.