Mine drove me from my house to the airport without my ever touching the steering wheel so what exactly do you mean?
Did it also drive itself back to your home empty?
If it's full self driving, then I assume that Tesla is paying for your insurance and taking all responsibility for any crashes it causes in your car?
How impressive it is depends on where you live.
No, it could not.
I owned a Model 3 with FSD. I own a Mach-E with BlueCruise. They're equivalent for the majority of drives I've done.