This is a sturdy product and easy to put together. It looks exactly like it does online and suits my small, beige apartment perfectly.  My 8-year-old cat likes the first three levels, but she avoids the top.  This could be improved by making it circular (it is square) and by having an open side so she doesn't have to jump up and over the edge (in addition to its already steep height) to get into the "nest."