Years ago, I used to build my own kitty outside enclosures for outside the windows of the house.. My cats spent nice days out there enjoying the birds, trees and neighbors' dogs w/out getting lost, hurt, fleas, just fresh air.. I covered it, too so that they could be out there if it were raining and put a litter box there, too. I may buy one or more of these and save myself the work of building as I am getting on in years.. I've never had a cat that didn't want to go out in the safety of the enclosure.
I have two indoor cats and I bought this for them hoping they could enjoy being outside without escaping. But they both hated it.
I had a Kittywalk about 10 years ago. That thing lasted for years. I even left it outside through Wisconsin winters. It’s a very nice enclosure. I just bought my second one. My cats love it. They can be on the deck and can see the sky and all around them, but they are safe. I highly recommend this item. I even saved the little roof cover from my old one and am using it with the new one. I highly recommend Kittywalk. There are tons of configurations you can get too. This was my first experience with Chewy too, and it was a fantastic experience. Very nice and very quick delivery.
I have a colony of 9 semi-feral cats who love the Kittywalk. The kittens play inside, sleep inside and even sleep on the top of the Kittywalk all curled up together. They took it over on the same day it was set up and made it their home!