If you get one, go get some electrical box covers (drill holes in the center) to use as washers for the bottoms of the top perch posts, as the ones supplied aren't nearly big enough, and can cause breakage.
These are almost 1/2 the cost of the ones at the local pet stores.
There's some psycology at work, as now the cat has a "high place" that belongs to them, so they're less interested in yours.
