They're kind of a mixed bag. They're friendly and personable and I don't doubt their intentions. Their ability to deliver, on the other hand, is somewhat dubious.
Editing was so-so. I intentionally left in 2 instances of clear-cut authorial intrusion and the editor did not catch them. Also, there was a pretty big continuity error toward the end of the manuscript (present because the publisher had me make changes to one of the characters) and the editor missed that as well. I caught it in my last read-through and I'm relieved I did.
When I received my 5 ecopies of the book there was a major error on the copyright page. The name of the novel was printed incorrectly, and in bold type, no less. Took about 3 weeks after I contacted them about it to have it fixed. Thank God the printed edition did not contain the error.
I've heard from other CMP authors that they've experienced similar problems.
On the other hand, with the errors corrected the print and ebook editions look fantastic. I just wish it hadn't been up to me to find them.