This condo cat tree is perfect for my 4 cats.  They absolutely love hiding in the caves and sleeping in the pouches!!  Very easy assembly and a durable product.  The only thing I had to change was to remove the two ladders leading up to 2nd and 3rd caves.  I have bigger cats and they were jumping off rather than using the ladders.  Plus it gives them more space to climb and they actually lay on top of the caves also.  We kept the first ladder attached at the base.  They can be left on or removed, whichever your preference.  My cats are pleased!!