The New York Times is running a series on issues facing the aging population. Charles Duhigg wrote one on long-term care insurance that will make you angry and break your heart. Titled "Aged, Frail and Denied Care by Their Insurers" It truly is upsetting, but it's a good picture of what the older long-term care policies were about.
Newer policies are better (in general), and long-term care insurance is even encouraged by the government. But be careful. Check out the company well. Call your state Insurance Commissioner and ask about the company. Perhaps you should even ask an attorney. A good policy can prove very useful. A bad policy is little more than a scam.