This is nice if you’re talking about the bottom part for a cat to hide in BUT to install the top part with the 3 legs was impossible.  I could not reach inside the bottom one (furtherest in the rear) to screw in the leg for the top part to be installed.  Therefore the top tray and legs are no benefit to me.  Currently using bottom one only.   If you don’t have help to put this together than don’t buy it especially if you want the unit as a whole like it shows.