I actually work for Wells Fargo collections. Nothing I say is the opinion of WFF and I would like that to be clear. I deal with CCCS everyday. Yes it does hurt your credit. On your credit report, when you look at the accounts you included on your CCCS agreement, show up as Credit Counseling Services. This will make every creditor from then on ask a lot of questions why you had to use a third party to take care of your debt. Also, the statement earlier that the financial institutions are somehow tied to CCCS organizations is preposterous. CCCS causes so many problems it is not even funny.
Realize this, creditors don't make money if you are not paying them. They are willing to work with you. Many of them will reject your initial proposals and it will take two to three months to get approved after your accrued another $300 in fees. Instead, save yourself some money and just call up the bank. I know I give people better deals everyday. Corporate America is not out to get you.
For more I have actually blogged about this topic a little better at this link:
CCCS
This is from an article which you can also read which applies to you.
The person you speak with may not sound very concerned, but its not their job to sound concerned. Get over it and save yourself some money.