My 11 week old puppy Tucker I've only had for 13 days and I am really impressed with him. He knows sit, wait, down and "shake paw" command. He now understands that if he needs to relieve himself he just walks to the front door. He even picked up on that I wear the same sandals when we go outside; a few times he has carried them to me. We've been potty accident free for 4 days :) . Its great to see when your dog just connects the dots.