My 2 cats love to jump around on this.  But with only 2 days use, have already chewed through the elastic "rope" that holds one of the toys on.  I think it will be an easy fix, but thought it might have been better construction.  Additionally, the platforms are too small for them to really nap on.  So find they use it to chase each other rather than nap.  Plus side:  easy to put together and I can easily make bigger platforms for the top so they are big enough to be functional (but careful about the weight to avoid tipping over).  One cat already loves the sisal posts, and has used all 3 levels to his joy.  Think this is worth the price, if you are willing to get a little creative with some of the functions.