Fun for the cats, ours use these untill theres nothing left of it. Unless it is made with a wood base, then it will last longer.

Pros: sharpens claws,

Cons: none

My cats got this new condo for christmas. They love it and use the scratching posts like crazy.... It helps keep them off of my furniture, or at least sometimes....

Pros: The cats love it.

Cons: Quite expensive

We have one of these in the feral section of the shelter and the cats love it.

Pros: Cats love these

Cons: None

The cats like to hide inside & will (not as much as I like) use the scracher. It is not their favorite toy, but its ok.

Pros: hiding place & scratcher

Cons: none

My kitty loves his little house/bed. And I love seeing him climb inside or on top of it and curl up.
The only problem is the fact that it's hard to clean if my kitty has an upset stomach inside it.

Pros: cute, and easy

Cons: hard to clean if there is a mess inside