I'd love to get a Martins cage for my girls. I have a 2 story cage that my daughter got for me from PetSmart. It has a drop in bottom but originally, it had a wire bottom. I removed the wire bottom entirely so the cage would drop in the pan. I then had to adjust the ramp. I used a couple of triangular shaped (corner units) to minimize the steepness of the ramp. I added another ramp so my rats could climb up easily. The black coating is coming off of the wire on this cage and the pan is bent up a bit on the floor part. I just want a new cage! I have several other cages...2 chinchilla cages with nice deep plastic bottoms, a cheap 2 level ferret cage, 1 bird cage (with 2 levels), small animal cage (2 levels), rabbit cage, one level w/drop in pan cage (I use for my "hospital" cage in an emergency). I also have a 2 level acquarium topper cage. I think that's all I have at this time. I don't need them all either, so if anyone is in need, it's free! I have to do something with these cages..my husband is annoyed!