Just got the J&J today, glad they brought it back one shot is nice and convenient. Where I went you even stayed in your car. Couldn't have been easier.
Kinda made the laugh how the nurses were so shocked that I actually made an appointment they said I was the only one that bothered to sign up online ahead of time in a few days.
I think that just means go spend 30 mins when you can asap and get it done. There are plenty of doses out there and it won't take much of your time.