This cat tower is amazing! So much more than what I had expected. I have an 18 pound cat and it is sturdy and roomy enough to accomodate my big boy! Very easy to assemble, took me about 30 minutes. All the parts were there, even the little hex wrench to tighten the bolts. They obviously have great quality control. The color is unusual and I, like some other reviewers did not use the round piece, kittens might play in it but it serves no purpose for larger cats other than to be in the way. Warning though, it is a good sized piece of furniture but if you have the space it is a great buy!