My kitties love this tower (Tasmania).  This is the 2nd Kitty Mansion I've bought - they're both super easy to assemble, sturdy and the cats love them.  Both of mine are tall, this one is 75", but they won't fall over like the cheaper brands did.  Besides building them sturdy, KM, pays attention to the center of gravity, so they don't fall down.

I added seasonal garland to the vines just to make it more fun!  Right now there is Fall color leaves with pumpkins and a "Cat Toy"  Halloween  skeleton bones garland that the kitties love batting around.

Pros: great value, easy to assemble, good/simple directions, quality parts