The cattery is well built and contained all the pieces.  That's the good news.
The bad news is that the pieces had to put in a SPECIFIC order but it was impossible to know what that was until you put them in the wrong order and had to take it apart and start over.
I think something as simple as numbering the order of the pieces could have saved me time and aggravation.  
For that reason I can't give it more stars.