I have had ferrets all my life until this year when I moved into council sheltered accomodation because of my disabilities. Despite having two dogs, a cat, and three ferrets they took me on. That was until a month later when one of the other residents feared for her life with my very tame ferrets and I was told to rehome them. However, I have very good experience with indoor and outdoor ferrets and their cages. The most difficulty I have ever had with any cage housing ferrets is when it comes to cleaning the cage. It must be very easy to access all of the inside of the cage for cleaning. This is obviously not the most important factor but beleive me the cage will need to be thouroughly clean to remove all of the odour that comes with ferrets and to be hygenic. I wish someone had said this to me when I first bought an indoor cage as it was a nightmare to clean out and only had tiny acces doors scattered on each level of the cage. Never again! It was a lovely cage for the ferrets though. Mickey.