All three of our cats like this climber a lot.  They use it mostly for sleeping and observing the outdoors.  We replaced the included toys with something more durable as the cats ripped up the included one on the first day (within the first few minutes).  I notice a bald spot on the ramp where the fleece is coming off already (after two weeks).  I wonder if the fleece is as durable as other possible coverings.  The cats like the fleece better than carpet.  They have not scratched on the scratching posts yet.