This playpen is a wonderful idea. My 19 year old cat is starting to show her age, and this cage/crate/playpen is great for keeping her safe and out of trouble for those times I can't be at home with her. It's fairly easy to assemble, sturdy, and easy to access with the four doors. While no animal really wants to be crated up, after a week she comes and goes out of it when I'm home with no problem. Very roomy, there's lots of space for her to move around.[...] so I'm very pleased. Thank you!