i walked on some drywall stilts when i was a kid and found them to be pretty easy then. They are actually quite easy to stand on and you feel very stable most of the time. They are rather complex with joints, springs, etc built in. I think i've only fallen once while working on the bus. i tripped over a branch that was laying on the ground. That extra couple of feet is a long ways to fall!
these aren't mine, but are similiar....except mine are covered in paint, dirt, and scratches and the buckles are all worn out so i replaced them with leather straps.