This product was very easy to assemble, and is not flimsy like other products I've purchased. I bought 2 condos, and my cats were all over both of them -- testing the well-padded top, checking out the inside, playing with the toys -- and they loved the holes that allowed them to play "cat-and-cat" with each other.  I liked this product so much that I immediately ordered two more condos.

Pros: Great value -- and my cats love it!