This is a solid and attractive kitty jungle.  I have two cats, one above normal energy.  She climbs, hangs and speed darts from landing to landing.  I will mention that the blue carpet is very smooth and the kitties don't always get a good hold when climbing from bottom to the top house part. With that said I wouldn't change my purchase, my girls love it.   As mentioned in other reviews you will need your thinking cap to assemble.