My cat is a little clumsy.  Yes, I know they are not supposed to be clumsy but mine is.  So....I wanted to find one that did not go really high and the perches were not reall small.  This is a good one to fit those needs.   I am 5 feet tall and it only hits me a little below my waist at the top level.  All three perches have a wide base with a little bit of side rails.  And, my cat loves it.