Hi Coco,
My little one is only pad trained. I have had great success with it. I had the disposable pads on the floor in his pen but what I bought was this pad holder and it comes in 2 pieces. I only used 1/2 of the pad holder and had to cut the pads in half to attach to 1/2 of the pad holder. I hope I'm explaining this correctly. In his pen I have his bed, food dishes, toys and this pad holder. He mainly used the pad holder to go potty on. Now when he is in his pen which isn't often he won't even potty in there. He waits until I take him out of his pen and then goes potty on the pad in the family room. Go figure. It takes a lot of patience, consistency and time for them to be trained. He is still very young but he will get it. I still praise mine every time I see him using his pad and he still comes looking for the pets and kisses when I praise him. Below is a picture of the pad holder I am talking about. I hope this helps.
http://d1rgby1m7uuvjr.cloudfront.net...7127802$SS172$