Please send me your thoughts on going into a credit negotiation program.?

What about those over exposed credit companies that promise you to eliminate your credit card debt by entering thier credit negotiation program? Seems to me that you put your life and credit history in their hands with no garantee. Anyone has participated? I have "mid sized"credit card debt BUT no bad credit. Pay ontime. Only Problem: monthly payments are killing me. What is the truth on dealing directly with credit card companies?? Please, can anybody share ideas and experience? Tks