Oh, Ben!
You can say "for a good dog".
Everyone's idea of "good" is different!
Example: Luke is a good dog. He hasn't eaten my house, killed my small pets, bitten anyone, or destroyed Ophie. He's even good on leash after about the first 5 minutes.
But I'd still walk him on something thicker than our white leather because when he decides TO be bad, he can be really
bad, as in really
strong.
But for a dog under 30 lbs that isn't into hyper "MUSTHAVESQUIRREL!" mode, I think it'd probably work out just fine.