This is a well built cat tree.  I like the cut outs to each level to help facilitate traveling between them.  I think it could use being about 6 inches bigger in width both ways as we have a large cat but she's still able to travel it.  The cat condo part is huge!  She loves being able to stretch out & lay in it.  She hasn't traveled to the very top yet but we've had it less than a week so I'm not worried.