I have a very tall bed.  My big, fat, arthritic cat attempted to jump up one night and fell back onto her tail, causing a chronic injury. She really needed her own staircase.  I received this product quickly.  It was simple to put together with the wrench provided.  My cat tried it out immediately.  My other younger cat was suspicious of it and left it alone for several days, continuing to jump directly onto the bed.  Then she saw how much my old cat liked it.  Now she has taken it over, lolling about on the steps, running up and down it, and sleeping on it.  It's a hit!  Don't use it on hardwood floors.  You must have a rug under this staircase to avoid scratches to your floor.