I've got a few ACA contracts with them and have had no trouble with them. But that's because I never call or email them.
As far as ACA, I'm currently moving all of mine over to @Jim Wright. He's the ACA guy with the Cason Group.
When Jimbo first came on here, he told me that he used to sing opera. Once sang butt naked on stage. (That's my version of the story. His is a lot different) But hell, anybody that can sing opera gets my vote. It does help that he know's his stuff.
I never had any problem until I asked to move my contract. It was crickets all around.