It has the easier access neck joint, 10-14" compound radius fingerboard, different neck profile, upgraded pickups, and the s1 switch. Not a massive difference compared to the American Pro, but I guess they've got a product line to fill out. The neck joint and fretboard radius are nice additions, I think. For the same price the Ibanez AZ gets you more in my opinion, but it doesn't say Fender on it. The Kiesel I've got on the way offers more for less money, but also doesn't say Fender on it.