Seems to be very sturdy based on assembly and compared to a previoud tree which lasted less than a year (my cst is small, but loves jump on it after an accelerated run across the house). I like (and my cat seems to have appreciated too) the materials used or cushioning which are different from the "typical" materials used for car trees. The top basket is of a good size (unlike in many other trees) and with a super comfortable cushioning. This is my cat's favorite spot. The only thing my cat does not seem to care about is the little hammock at the bottom (not surprised though, she does not like shaky things). However, my son plays in it with his lego figures, so still useful. Overall very satisfied and just hope it will withstand my cat "jumps" longer than the previous tree. For now, it looks like it will.