I bought one for Blaze last year as he would walk up to the bed then whine, then make a feeble attempt to get up and we had to help him. He refused to use them! Every once in a while he still does the feeble whine thing, but usually he just takes a running jump. He's still pretty agile for 16.
Ahhh yes, the timeless Basenji trick! Bella does the same things, she amazes me how smart she is. Scratching the door while we are eating dinner is her favorite. She then (of course) runs back past you in pure Basenji fashion to try and steal your food!!! Ya Gotta love these 'Senjis!:D:D:D