no. having (half) believed the hype when we got rabbits eight years ago, along with all the other stuff, daughter and i purchased leads. we found them entirely unsuitable for rabbits. rabbits don't want to walk a straight path, like a dog. they want to hop about all over the show. leads don't give them the freedom they need to hop and run. but if they did, the leads would be so long they'd be dangerous, the bunnies would be tangled up, injuries would occur.
if i'm talking about something totally irrelevant, its because your link won't open for me.
now many happy bunny-walking RUers will come along to say i'm wrong. but i have shared my experience with you.