I really like this item and purchased it because it was very reasonably priced. It is very sturdy and very easy to put together. The top lifts on and off and has a thick mock sheep like cushion. The only downside is that my cat is not all that excited about it. He will occasionally go in if I encourage him by playing with the balls hanging from it.  He is only 8 months old and very busy right now. I am hoping with time and age he will use it more!  

Pros: Strong and well made for the price