I don't own an EB Evo, but I've been seriously considering an EVO-KC9.
I have a EB Classic Custom in .45, and I can say that it's the best gun I've ever owned. The only thing better than shooting it is breaking it down for a cleaning and admiring just how well made it is. Every little hidden surface is finished perfectly, and there's not a thing I can see that would improve it.
I've deliberately held off on looking for one of these guns to see in person, because I know it'll probably come home with me that afternoon.