Off the top of my head:
1. Increased risk of getting dementia (due to living longer).
2. In some cancer cases, being kept alive in a state of suffering for a year or two more than you would have lasted without treatment.
3. Health treatment costing a significant fraction of GDP.
Some people might still think these are good things. I think "questionable at best" is a good summary.
Some people might still think these are good things. I think "questionable at best" is a good summary.