Bought the game yesterday. The new chaos tower is nice, though could have used an other interior, cause you have not really the idea to be in a tower. And not much chaos is there. custom villains, created with the villain creator, don't spawn, unless you have turned it on that they will replace others. But that's not really what the desciption says, as the chaos tower would spawn custom villains anyway. 
The fixes since 2.1 are good and noticed that some things were also changed compared to earlier versions. No more that your char turns to half clothed when starting sex, which is good.