First the "Kitty mansions" looks like in the picture given by Wayfair.
The only thing  you cannot see on the picture is the tiny stuffed toy
that is attached to each seat. Second it is easy to build. I would
recommend you measure and sort the poles by size before starting. This
cat tree is very sturdy and made with very good material (wood and
very soft carpet).
We have two female cats: a 6 year old and a 2 year old. We chose the
blue version of the Kitty Mansion because our cats prefer colors like
blue, yellow, red and green as oppposed to earth tones. We placed the
Kitty Mansions in the office in front of a large and high window. They
hang out on any part of the Kitty Mansions. They especially like the
top of the cat tree where they sleep "snoopy-style" on the roof top of
the top mansion or on the top seat. Despite the fact that their claws
are capped they climb up the poles. They have a lot of fun with this
cat tree and we are very happy of our purchase.