We had a smaller version with 2 perches but discovered that the perches were too small when Saturn, one of our three cats (11 pounds), rolled off a perch and was limping for a few minutes.  We returned it and purchased this larger one and are so happy with it's larger perches.  It is quite wobbly on our wood floor, would be different if the base were larger.  We plan to buy a weight to stabilize it.  Other than these 2 things our cats (7, 11, and 11 pounds) love it!  They spend hours sleeping on the perches :)