I dont know anything about that link above, however awhile back my wife and I used CCCS Atlanta as it was reccomended by Clark Howard.
http://www.cccsatl.org/
Long story short, I had a credit card that I never paid late and never went over the limit. Well one day I receive a letter that says my interest rate will go up unless I opt out. Well the letter was dated after the deadline so my interest rate tripled and the cc company refused to give me back my original rate. This and a few other things prompted us to look into a solution to our debt. So we consolodated all our cards with CCCS and they negotiated lower interest rates with the CC companies (they got me an even lower interest rate than I originally had on the card that tripled) and two years later I was debt free.
One of the rules while being in the consolodation program is that you are not allowed to use credit or apply for new credit. It is viewed as a few steps below bankruptcy while you are in the program, once you are out it pretty much goes away.