It seems to be very sturdy and a great product. The only issue I have found is one of my cats is a little scared of it. He is overweight and the distance between the stairs is a little difficult for him. It's due to a medical issue that was caused by a very cruel person, but it seems that reducing his intake, using indoor weight formula and a timed feeder do not seem to be working. I just wish it was a little easier for him to use.