I found that it helped a lot to put clear double sided tape or packing tape on the corners of furniture that my cats were attracted to, and catnip and treats on their condos. I was also able to position their furniture in places that they liked- between the couch and the window and next to my computer desk. Now I no longer need the tape and the cats leave my Stickley alone and gleefully shred their condos instead.
Everyone is happy!
