Tesla/NACs connector is just stick it in and it works... the car holds onto it until it is done or you tell it to let go.

I don't think I've ever seen a public J1772 connector that had a functional spring in the little thumbpress/lock/turn on thing which means if you don't know you need to stick a key or pen cap, or squeeze really hard to pry the little fucking plastic tab up to the lock position, it just won't work.

I'm still a little baffled that people have all these problems. I've owned an EV for the past 6 years, I charge at public charging stations all the time (primarily ChargePoint and EA), and while I've had tons of problems with the chargers themselves (e.g. the charger just not working) I have never had a problem just sticking the charging plug into the outlet in my car.