The pen is just what we need for our inside/outside kitty who cannot stay out in our current weather, which has been down to -28 below zero many mornings. " Tabby cat" cannot be loose in the house or I'd have a cat fight with the established cats {I think Tabby was a drop off} so we needed a pen for him in our entry way.  He is very content in the pen.  I do think it would have to be steaked down if a person had it outdoors as it would not handle a strong wind but for setting it up indoors it is ideal.  Service was good.  It came in four days and was easy to set up.  We are going to install a kitty sill for him to lay on.  The shelves that come are nice but the kitty sill has a nice soft pad for him to lay on.  Yes, he is a blessed cat for being an apparent drop off.  He now has a comfortable and safe place inside.