Great to scratch, great to snooze too!
We now have two of these as Trixie loved the first one so much (there's a photo of her in the gallery, having a rest on top of it).
The first thing she does in the morning is go to have a scratch on this, which is better than the bedroom carpet! And when I get home from work, I often find her asleep on top of them, the shape is perfect for her, especially as both of them are next to each other.
As other reviews have said though, all the shredded bits of cardboard do get a bit messy and every time I vacum I have to hoover all around them and the tops of the scratching pads too.
But the mess is worth it for a very happy kitty :)