Come one, Come all ! -- Reps who take any and every Social Security Disability or SSI case -- a good or bad thing?

I received an email once from an attorney who is a partner of a large firm that specializes in Social Security Disability - SSI, Workers compensation, and LTD (long term disability). Before getting into his reason for emailing me, he made mention of the fact that his firm was not a "mill"; in other words, they did not take any and every case they could get their hands on. In saying this, he