Love my cat tree and so does my cat!  I have a heavy 18 lb older cat man who is rather clumsy climbing.  This tree barely moves when Tony has to struggle a bit to get up on it.  He has been addicted to it ever since the first time that the sun warmed up a perch for him.  It also gives him a safe high spot for his feed bowl that his Corgi friend is constantly trying to steal.  I love it that he can scratch up the pads and I can easily replace them with a new set.  Definitely worth the investment.