Reverse Mortgages?

I am seeing more and more ads for these reverse mortgages. When I saw the first one on TV a couple of years ago, I thought there must be a catch somewhere in all of this. Then we had an informational meeting about it at the office and of course I had to miss that meeting. I was told that FHA has adopted it as a program, but that there were quite a few questions that the financiers at the meeting could not answer.

What is the general feeling out there in regard to the reverse mortgage? Am I the only one that doesn't trust it ? Maybe I just need to be educated on it. Understanding often brings acceptance. The way it is presented in the TV ads, makes it seem too simple. What about estate taxes? What about the heirs responsibility? What if the individuals live to be very old? Help!?