I have 2 of these cages and love them! The doors open completely so you can get in an clean every nook and crannie. You can add up to 3 levels if Ferret math has occurred. If you need to separate ferrets, you can close of levels making separate cages.

The cage is big. You need to put it together in the room you want it in as it may not fit through the doorway. If you have 3 levels, you may need a stool to reach the top one

Pros: Huge doors, expandability

Cons: size

This Ferret Nation cage offers plenty of room to romp when little fuzzbutts can't be out roaming around.
The price isn't bad for the quality of product you receive (very sturdy, and well built).
The assembly, however, is a bit tricky if you are trying to put it together by yourself.

I currently only have one ferret, and a 2 story FN cage. Apollo has free run of the whole place and he loves it! It's perfect for the time while I'm at work, and he can't be out to roam the house. I particularly LOVE the full doors, they make cleaning a breeze. Definitely a must for ferret owners!

Pros: Roomy and Sturdy

Cons: Assembly is a little tricky for one person to do.

I love this cage a lot. It is very spacious and very easy to clean. It's on wheels for good mobility, and it has a shelf underneath for storage. You can open all of the doors for easy access to all levels.

The bar spacing is a little two big for my female rats, so I zip-tied hardware cloth to it to prevent escaping. I wish that the bars were a little closer together, but it is made for ferrets after all.

Overall, I recommend it. If you have small animals such as rats, just make sure they can't escape before you make it their permanent home.

Pros: Wonderful design, easy to clean, and very spacious.

Cons: Bar spacing is too big for smaller animals such as rats.

I love this cage and so do my 4 ferrets. It's easy to clean and access. There are no wires for my ferrets to walk on. There is plenty of room for all of there sleep things and toys. I just recently bought the ramp that goes on the outside so they can get in and out of the cage easily on their own. I recommmend putting tube socks over the ramps so their feet don't get caught in the wire. Great cage. I won't try anythig else!

Pros: big and roomy, easy to clean, no wires to walk on

Cons: -

I have a rabbit and I was unable to find a cage that I thought would be sufficiently big enough for her. So when a friend's ferret passed away I got this one, its not the double level one though. The only modification I had to make was to takeout the little ladder and build a box for the bottom so the wire doesn't hurt her feet. It's easy to clean, rolls around so is easy to move, and is definetely spacious enough!

Pros: size

Cons: need to build a box