Qualifying for Chronic Care Management

I'm not sure this question is pertinent to COPD alone, and if not, just ignore. My doctor referred me to Chronic Care Management, which gives me a special agent to help with Drs. appts, taking medications, and general health care. You have to have 2 or 3 chronic illnesses to qualify. I looked into it, and the lady sounded very good. She sort of lost me though when she said everything she did would probably bring an extra charge. Insurance would supposedly pay most. I got a little uncertain, so put it off for now. Extra research led me to reasons why this may not be so good. I'm wondering, have any of you been approached about this and what do you think about it? Thanks!