I have two young but LARGE and growing cats who love to play-this jungle gym saved my furniture! Ping takes flying leaps at the structure and claws all the way to the top-never once wobbled! Suki hangs upside down under the top perch-quite funny to watch! The product is wonderful and was exactly what was toted on the website if not better since it was pretty easy to put together. The only down side was the hanging "toy"...was way too cheap and my girls destroyed in less than 5 minutes-but I believe they're part tiger. The nice thing is I can hang my own toys from the loop now.  I would recommend this to any other "parent"!