I have done but it's important to remember that it's not like having a dog on a lead. They go where they want and you should never pull/tug it and rabbits cant be 'trained' to use them (in my experience anyway).
The front garden isnt secure but has lovely long grass and dandelions so that's why i've used it in the past. And he wasnt bothered - he seemed to enjoy the new experience, if anything.
When we are out the back he has free range and he follows me around and stays very close to my heels but when we were out the front on his lead, he seemed to know he was the boss. :lol: He sort of hopped where he wanted and i followed, always making sure that the lead was slack. He's not scatty or unpredictable - if he was, i'd never have used it on him.
A passer by commented on my 'funny looking cat'. :shock:
TBH, i dont think i'd use it again - it just didnt feel right and it's certainly not natural. I'll just wait to get a run out there before he can use the front garden.