Someone said they have an F at the BBB? Unless something has changed, I just checked the BBB rating for them as suggested above, and they have an A+ rating. I don't think that means much, because I know if completely rotten companies with the same rating (3 years = 733 complaints). However, we had a good experience with In Charge. Unlike some other debt settlement companies, they didn't charge us anything up front. Some companies, apparently, want you to pay a bunch of money up front, then they tell you they can't help you, and you're just out the money you paid, as if you can afford to lose it.
Our payments were reduced by half. We closed our accounts and paid everything off in three years due to reduced interest they negotiated. This may not work for everyone. We weren't behind in payments; we just looked at where we were financially and got nervous, because if something ever happened, we thought we could easily get in trouble. (And actually, I was laid off a year and a half later, so it was a good thing we had done this.)
This is just anecdotal, and it may be different if you are way behind, but they helped us. They told us that they would look at our situation for free and tell us if they could help us--and they did (and could). Then we didn't have to pay them anything but a nominal fee to help--we were saving hundreds more than we were paying them. It was a good deal for us.