We just took in 3 feral kittens who escaped everything we built for them. This Cattery has been amazing, allowing them to run and romp and get socialized. The were 2 negatives for me. The really intense smell when it was being unpacked. Like Cedar on Steroids. Maybe it was treated with something? And the ramp has green traction bits on it, like painted glued on litter. That material comes off really easily as the kittens come up and down the ramp. But otherwise this thing is great!