Good concept but unfinished thought process
My three kittens needed a cat tree to be used in the stable so this was ideal against the dust as well as varying temperature and humidity. Although it is not placed directly outdoors, it is not airtight or insulated so is quite cold in winter. Only the one thin cushion of the deep basket is removable, the other three are not. Though the nylon material is easy to brush the dirt off, it is neither soft not comfortably padded.
A frustration was finding cushions for the spaces. I eventually did!