I recommend the Ferret Nation more than the Critter Nation. It's $10 cheaper on Amazon where I am, not a big difference but $10 is $10 I guess. FN uses hardware, making it sturdier while CN just snaps together. The FN bars seem stronger, I think it has to do with the horizontal welds being closer together. CN is good for young chins or kits under 6 months of age. Also the FN has 1" bar spacing where as the CN has 1/2", the half inch is better for kits or chins under 6 months who can squeeze though the 1" spacing. For adult chins most go with FN. Both cages are the same size though. Both you will need to either cover the plastic pans or replace them.