Consumer Credit Counseling Service
I am not familiar with Superior Debt Relief. They may be good or not. If they have flashy TV ads and the like, you will probably be unhappy with their service. One group that I am familiar with is Consumer Credit Counseling Service. Their link is www.cccsinc.org . I believe them to be a legitimate non profit. Credit letters from them are recognized by mortgage lenders to show that a prospective borrower is back on track. I think that they do charge for their service, but probably much less than the sleezy outfits.
Good luck