We made this tree to our bitch 1 year, which is still a kitten. Stability is not sure but we feel that he will not fall, the ideal is to be able to fix it to the wall. Infact it's more that it worries! The cat does not care strictly! In any case it is for a cat, but not for both.
Unbeatable price! Only problem, it took time to understand what was going to live where, what was represented scratching .. Otherwise, nickel delivery, well packaged!