LOL, when Uni was a baby, I started potty training her in the bath tub! Then went to the pee pads in the bathrooms. She had a pad in each bathroom. Once we came home she would pee downstairs, then zoom upstairs and poop up there! When we came to MIL's house she would go in the br also! We have sicne moved her pee pad into the back sun room. She got the change within a few days. I think it's more of knowing the command of "go pee" or "go poop" then where the pad is.
She took a while to "go" while on walks. We don't walk that often, but she gets plenty of exercise in the house running around anyway. Now she will go pee on walks, but she is marking and not actually relieving herself.
But to answer the OP, I love pee pads. Uni needs to go at about 5am. No way I would take her outside at that time! Just last night, she wanted to go at 3:30! I just open a few doors for her and that's it.
