Amazing product! Unbelievable price and quality!  The seat is "just right" in size for my 16# "whopper” cat Fritz.   It's just right for him to get comfortable and survey “his” domain. 
         Perch came in 1 perfect piece (no need to put anything together!  Yay!!) with detachable soft Berber-like cushion.  Instructions were very easy without the usual garbled messages; the only thing made me chuckle was for someone “to eyeball” the level of the seat. 
I am very happy with the look, quality of this perch and have already recommended it to a few of my fellow “catsters”!