The power steering in my old van has been dead for over a year now . As long as you're moving , it's not too bad but if your stopped or moving slowly , i.e. trying to go into or out of a parking space , IT'S AWFUL !! .
I've driven plenty of vehicles with no power steering and some with no power brakes . After awhile , you do get used to it a bit . The '66 mustang I used to own had non-power , drum brakes at all 4 corners . Once you got used to it and learned to apply more initial pressure , it stopped similar to a modern car . The issue was when you got back into a "normal" car with 4 wheel power disc brakes you'd just about launch yourself thru the windsheild the 1st time you tried to stop !!