I just ordered this last week and received it today. It cane fully assembled      It’s very sturdy and well made. I have a big cat and I don’t have to worry about it falling over. I also feel it will last for some time. I like that it is fully carpeted and that the box areas a large enough for my big cat. I really searched around before I bought this. You can’t find cheaper ones but they will not hold up, the box area is to small and frankly they are junk. Wanted to leave a review just in case others are looking for something sturdy, well made, and that will be around for a while