This Kitty Mansion was extremely easy to put together, it's sturdy and you can't beat the price.  I have a 12 week old kitten and 1 yr. old cat, they both love it.  Had to put treats on it to intrigue them at first, but they go right over and play on it now without the treats!  Might have been the new smell that made them a bit leery at first. I would recommend this cat tree to anyone, helps protect my furniture, the cats love scratching it!