We adopted two kittens ( now 8 months old) and needed something to help use some of their energy.  I purchased this cat tree after reading all the great comments.  Putting it together was easy.  Did it in about thirty minutes.  The kittens LOVE IT !  It is VERY WELL built.  Very sturdy.  And pretty large.  Very happy with our purchase.  The price was very good, great quality, pretty color brown, and the kittens love it.  Who can ask for anything more