The important thing to note about all these vaccines. J and J included is that some weeks after getting them, your chance of being hospitalized or killed by COVID is essentially 0. The 62% is referring to the fact that you have a reduced chance at getting COVID, which is great, but you won't die from it, or get really sick. With Astrazeneca now available, that means that the restrictions will be lifted sooner and less people will die / get really sick. I would gladly take J and J or Astrazeneca if offered to me and would be very happy if offered to my family and friends too.