I loved my Superpet cage (ferrets are more free roam now, with just a small open cage in their room). I know some people find it hard that the doors aren't big on all levels (which is hard with litterboxes!) but the floors are solid (not wire) which is so much better for their feet. I also liked the bubble tubes for going from level to level, no room to fall. Although I supposed they could be harder for an older ferret to navigate. Dooks Risa [Posted in FML issue 5172]