Bought specifically to put out on screened in porch so kitties could have a better bird viewing perch. Very easy to assemble, but is a little wobbly. Have it placed in corner to minimize the movement. Both cats love sitting on the second landing, and one has taken to sleeping in the 'cave'. Great value compared to other units on the market.

Pros: Great value, easy to assemble, nice appearance
Cons: a little wobbly