We enjoy our new 'condo'.  Our human mom had an easy time putting it together and it's really tall. I feel like I'm in a tall tree looking out the window at the birds.  I did see her cut a hole in the cube level on two sides and then stitch hem the hole so we could look out from all sides. We still use our old post for claw sharpening but maybe if human mom added a bit more catnip to the sisal rope we might be enticed, but it might not be enough rope for good sharpening.  Overall, it's great and we are super happy with the purchase.  Good price too!  ....from Momma Kitty and Buddy