After assembling I noticed that the top platform is very wobbly and my cats will not use it. I even sprayed catnip on it but they all are scared of it. One of my cats is a big boy, weighing in at 22 lbs and 18" tall when sitting, so when he jumped off the platform he knocked the whole thing over, making him even more scared of it! Lastly, because I sprayed catnip on it I can't return it so it bacame a fuzzy "end table".

Pros: Great value, easy assembly, shipping was reasonable
Cons: too wobbly so cats are afraid of it.