I can only say that my two cats absolutely like this one the best, we own two others.  I noted that they both loved the high seats at the very top.  I know cats, by nature, like being as high as possible on the perches of all our trees.  Also have to add that the 12" bucket seat (should of had two) is fought over by the two of them. As long as my girls (Taffy and Terry) are happy ... then it was worth the good sales I purchased it from.   I recommend it for any cat lovers.  5 Thumbs Up!