Considering melanoma is lethal, and the treatment (radiating away the entire immune system) bring very risky, this new treatment has the potential to both lower the risk and increase survival rates. I'll be very interested to see if the side-effects are of any concern, or if we're one step closer to a cure.

I guess it depends on the exact side effects, but if it causes more pain and suffering, then a more painful death is worse than a peaceful one, and on a per person basis - some may take the view they will die anyway and it's worth the risk as a last resort. But good question from the OP.