We bought one of these cages about 4 weeks ago and absolutely love it! We had a Midwest cage for 2 years. It was a pain! We had to build addition floors. The hooks on the bottom that hold the cage on had all popped off. The trough never *really* got clean. The bottom had started to bow up in the middle (as had the plastic snap in pieces) To clean it, really clean it, was a major expedition! But this new cage is fantastic! The tubes allow for more play space on each floor. There are endless possible combinations of ways to put it together and when they get bored you can change the layout. We have removed one of the floor pieces on the 3rd floor and put in extra long tubing from the 4th to the 2nd (chaining it to the bars for extra strength)We have water on the 3rd and 1st lever, a litter pan on the 1st. The great thing about the floor os that they have a little ridge and if someone has an 'accident' upstairs, the liquid staying in the rdge versus running all over (sorry-don't mean to be graphic--but we've all been there, right?!) Another wonderful thing about this cage it that the bars don't sit right down into the base. It sits on a ledge. So if someone has an accident out of the pan it doesn't get the bars icky! I just can't say enough about this cage! I highly recommend it to everyone. Oh a couple of things- if you have any older ferrets,you might want to buy some CURVED tubing as the straight ones are hard for our older ferrets to handle. They just don't like that head-first straight-down thing I guess. And if your ferrets seem to not use the whole cage right away, just give them time! Ours didn't use the top floor for the first 3 weeks! And lastly, if you are buying a pre-assembled cage, take out each piece of flooring and make sure it isn't warped. This happened to us and we had to go back and make a big stink to get a couple new floor pieces. I think they just force them into place to assemble it but it makes the tubes not fit right and when your ferret get in them the bend and ours actually broke. But I still think these are great cages! Especially for former midwest owners (since the midwest cages went up to $250-ouch-they weren't worth $200!) And if you are excperiencing alot of smell you can't get rid of, it might be time for a new cage! That is what happen to us. If anyone has any questions feel free to email me! Sorry this is so long! Kimberly, Darin, Gizmo, Bentley, Abu, April, & Klondike [Posted in FML issue 2554]