I used them back in 2012.  Soon after that they did not send anyone to Cleveland for quite some time.  I saw last week that they had two different girls in town.  The weird thing was that Miami Cover Girls was showing the same two girls with different names.  I thought that seemed weird.  The only other thing that stops me from using Chicago CG is their use of their "Blacklist" on their website.  I do not care if the girls that they show ripped them off or owe them money.  Putting out someone's personal info like that seems reckless.  I do not agree with their tactics.

If you contact them you get an email back from LA Elite Companions. Made me hesitate though I did find one review for one of their ladies.

That she has a listing on both the Cleveland and Chicago pages
http://www.eros-chicago.com/sections/chicago_visiting_escorts.htm

I've use CCG before and have been satisfied.  But now I'm not so sure.